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70641052 = 22173792741
BaseRepresentation
bin1000011010111…
…10010110011100
311220220221022021
410031132112130
5121041003202
611002025524
71515303406
oct415362634
9156827267
1070641052
1136969739
121b7a82a4
1311834551
14954bb76
156305a37
hex435e59c

70641052 has 24 divisors (see below), whose sum is σ = 131286960. Its totient is φ = 33143040.

The previous prime is 70641041. The next prime is 70641059. The reversal of 70641052 is 25014607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70641059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24402 + ... + 27142.

It is an arithmetic number, because the mean of its divisors is an integer number (5470290).

Almost surely, 270641052 is an apocalyptic number.

It is an amenable number.

70641052 is a deficient number, since it is larger than the sum of its proper divisors (60645908).

70641052 is a wasteful number, since it uses less digits than its factorization.

70641052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141 (or 3139 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 70641052 is about 8404.8231391267. The cubic root of 70641052 is about 413.3827842904.

Adding to 70641052 its reverse (25014607), we get a palindrome (95655659).

The spelling of 70641052 in words is "seventy million, six hundred forty-one thousand, fifty-two".

Divisors: 1 2 4 17 34 68 379 758 1516 2741 5482 6443 10964 12886 25772 46597 93194 186388 1038839 2077678 4155356 17660263 35320526 70641052