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70205407437 = 31123531745231
BaseRepresentation
bin100000101100010010…
…0011000000011001101
320201012201212012220110
41001120210120003031
52122240041014222
652130225310233
75033520055104
oct1013044300315
9221181765813
1070205407437
1127857138790
1211733795379
13680ab76009
14358000503b
151c5d68730c
hex10589180cd

70205407437 has 32 divisors (see below), whose sum is σ = 108567392256. Its totient is φ = 39930862400.

The previous prime is 70205407409. The next prime is 70205407457. The reversal of 70205407437 is 73470450207.

It is not a de Polignac number, because 70205407437 - 212 = 70205403341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70205407395 and 70205407404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70205407457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 832389 + ... + 912842.

It is an arithmetic number, because the mean of its divisors is an integer number (3392731008).

Almost surely, 270205407437 is an apocalyptic number.

It is an amenable number.

70205407437 is a deficient number, since it is larger than the sum of its proper divisors (38361984819).

70205407437 is a wasteful number, since it uses less digits than its factorization.

70205407437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745321.

The product of its (nonzero) digits is 164640, while the sum is 39.

The spelling of 70205407437 in words is "seventy billion, two hundred five million, four hundred seven thousand, four hundred thirty-seven".

Divisors: 1 3 11 23 33 53 69 159 253 583 759 1219 1749 3657 13409 40227 1745231 5235693 19197541 40140313 57592623 92497243 120420939 277491729 441543443 1017469673 1324630329 2127436589 3052409019 6382309767 23401802479 70205407437