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157311200 = 25521743269
BaseRepresentation
bin10010110000001…
…10000011100000
3101222000020101202
421120012003200
5310232424300
623335420332
73620060144
oct1130060340
9358006352
10157311200
1180886262
12448246a8
132678b967
1416c6d224
15dc25ad5
hex96060e0

157311200 has 144 divisors (see below), whose sum is σ = 417629520. Its totient is φ = 57630720.

The previous prime is 157311181. The next prime is 157311233. The reversal of 157311200 is 2113751.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 584666 + ... + 584934.

It is an arithmetic number, because the mean of its divisors is an integer number (2900205).

Almost surely, 2157311200 is an apocalyptic number.

157311200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157311200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208814760).

157311200 is an abundant number, since it is smaller than the sum of its proper divisors (260318320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157311200 is a wasteful number, since it uses less digits than its factorization.

157311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 157311200 is about 12542.3761704073. The cubic root of 157311200 is about 539.8252749756.

Adding to 157311200 its reverse (2113751), we get a palindrome (159424951).

The spelling of 157311200 in words is "one hundred fifty-seven million, three hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 43 50 68 80 85 86 100 136 160 170 172 200 215 269 272 340 344 400 425 430 538 544 680 688 731 800 850 860 1075 1076 1345 1360 1376 1462 1700 1720 2150 2152 2690 2720 2924 3400 3440 3655 4300 4304 4573 5380 5848 6725 6800 6880 7310 8600 8608 9146 10760 11567 11696 13450 13600 14620 17200 18275 18292 21520 22865 23134 23392 26900 29240 34400 36550 36584 43040 45730 46268 53800 57835 58480 73100 73168 91460 92536 107600 114325 115670 116960 146200 146336 182920 185072 196639 215200 228650 231340 289175 292400 365840 370144 393278 457300 462680 578350 584800 731680 786556 914600 925360 983195 1156700 1573112 1829200 1850720 1966390 2313400 3146224 3658400 3932780 4626800 4915975 6292448 7865560 9253600 9831950 15731120 19663900 31462240 39327800 78655600 157311200