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70680837 = 3313532153
BaseRepresentation
bin1000011011010…
…00000100000101
311220222221212210
410031220010011
5121043241322
611002534033
71515530403
oct415500405
9156887783
1070680837
1136996617
121b807319
13118496a6
14955c473
15631270c
hex4368105

70680837 has 16 divisors (see below), whose sum is σ = 97602048. Its totient is φ = 45450240.

The previous prime is 70680829. The next prime is 70680871. The reversal of 70680837 is 73808607.

It is not a de Polignac number, because 70680837 - 23 = 70680829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70680795 and 70680804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70680877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31753 + ... + 33905.

It is an arithmetic number, because the mean of its divisors is an integer number (6100128).

Almost surely, 270680837 is an apocalyptic number.

It is an amenable number.

70680837 is a deficient number, since it is larger than the sum of its proper divisors (26921211).

70680837 is a wasteful number, since it uses less digits than its factorization.

70680837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 70680837 is about 8407.1896017635. The cubic root of 70680837 is about 413.4603753749.

It can be divided in two parts, 70680 and 837, that added together give a palindrome (71517).

The spelling of 70680837 in words is "seventy million, six hundred eighty thousand, eight hundred thirty-seven".

Divisors: 1 3 31 93 353 1059 2153 6459 10943 32829 66743 200229 760009 2280027 23560279 70680837