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157730080 = 25517103563
BaseRepresentation
bin10010110011011…
…00010100100000
3101222210111222211
421121230110200
5310334330310
623352411504
73623453314
oct1131542440
9358714884
10157730080
1181041a42
12449a6b94
13268a7511
1416d3bb44
15dca9c8a
hex966c520

157730080 has 96 divisors (see below), whose sum is σ = 399095424. Its totient is φ = 58699776.

The previous prime is 157730071. The next prime is 157730081. The reversal of 157730080 is 80037751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157730081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279879 + ... + 280441.

It is an arithmetic number, because the mean of its divisors is an integer number (4157244).

Almost surely, 2157730080 is an apocalyptic number.

157730080 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 157730080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199547712).

157730080 is an abundant number, since it is smaller than the sum of its proper divisors (241365344).

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

157730080 is a wasteful number, since it uses less digits than its factorization.

157730080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 157730080 is about 12559.0636593657. The cubic root of 157730080 is about 540.3039897897.

The spelling of 157730080 in words is "one hundred fifty-seven million, seven hundred thirty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 103 136 160 170 206 272 340 412 515 544 563 680 824 1030 1126 1360 1648 1751 2060 2252 2720 2815 3296 3502 4120 4504 5630 7004 8240 8755 9008 9571 11260 14008 16480 17510 18016 19142 22520 28016 35020 38284 45040 47855 56032 57989 70040 76568 90080 95710 115978 140080 153136 191420 231956 280160 289945 306272 382840 463912 579890 765680 927824 985813 1159780 1531360 1855648 1971626 2319560 3943252 4639120 4929065 7886504 9278240 9858130 15773008 19716260 31546016 39432520 78865040 157730080