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70253523 = 3223339389
BaseRepresentation
bin1000010111111…
…11101111010011
311220012020201100
410023333233103
5120441103043
610545435443
71512100524
oct413775723
9156166640
1070253523
113672456a
121b63bb83
131172a042
14948a84b
15627acd3
hex42ffbd3

70253523 has 12 divisors (see below), whose sum is σ = 105889680. Its totient is φ = 44799216.

The previous prime is 70253509. The next prime is 70253527. The reversal of 70253523 is 32535207.

It is not a de Polignac number, because 70253523 - 212 = 70249427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70253527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169488 + ... + 169901.

It is an arithmetic number, because the mean of its divisors is an integer number (8824140).

Almost surely, 270253523 is an apocalyptic number.

70253523 is a deficient number, since it is larger than the sum of its proper divisors (35636157).

70253523 is a wasteful number, since it uses less digits than its factorization.

70253523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339418 (or 339415 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 70253523 is about 8381.7374690454. The cubic root of 70253523 is about 412.6254736755.

The spelling of 70253523 in words is "seventy million, two hundred fifty-three thousand, five hundred twenty-three".

Divisors: 1 3 9 23 69 207 339389 1018167 3054501 7805947 23417841 70253523