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70603040 = 25517101257
BaseRepresentation
bin1000011010101…
…01000100100000
311220212000011102
410031111010200
5121033244130
611001133532
71515054524
oct415250440
9156760142
1070603040
1136943122
121b78a2a8
1311820161
14953bd84
1562e9645
hex4355120

70603040 has 96 divisors (see below), whose sum is σ = 179054064. Its totient is φ = 26214400.

The previous prime is 70603021. The next prime is 70603063. The reversal of 70603040 is 4030607.

It can be written as a sum of positive squares in 8 ways, for example, as 70090384 + 512656 = 8372^2 + 716^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274592 + ... + 274848.

Almost surely, 270603040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70603040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89527032).

70603040 is an abundant number, since it is smaller than the sum of its proper divisors (108451024).

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

70603040 is a wasteful number, since it uses less digits than its factorization.

70603040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 70603040 is about 8402.5615142051. The cubic root of 70603040 is about 413.3086237975.

Adding to 70603040 its reverse (4030607), we get a palindrome (74633647).

The spelling of 70603040 in words is "seventy million, six hundred three thousand, forty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 101 136 160 170 202 257 272 340 404 505 514 544 680 808 1010 1028 1285 1360 1616 1717 2020 2056 2570 2720 3232 3434 4040 4112 4369 5140 6868 8080 8224 8585 8738 10280 13736 16160 17170 17476 20560 21845 25957 27472 34340 34952 41120 43690 51914 54944 68680 69904 87380 103828 129785 137360 139808 174760 207656 259570 274720 349520 415312 441269 519140 699040 830624 882538 1038280 1765076 2076560 2206345 3530152 4153120 4412690 7060304 8825380 14120608 17650760 35301520 70603040