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31308859070 = 25295316312497
BaseRepresentation
bin11101001010001001…
…110100011010111110
32222210222010211110222
4131022021310122332
51003110031442240
622214425301342
72155601624336
oct351211643276
988728124428
1031308859070
1112307042245
126099334852
132c4c5b2518
1417301d40c6
15c339b8eb5
hex74a2746be

31308859070 has 64 divisors (see below), whose sum is σ = 59768435520. Its totient is φ = 11789826048.

The previous prime is 31308859067. The next prime is 31308859093. The reversal of 31308859070 is 7095880313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2499062 + ... + 2511558.

It is an arithmetic number, because the mean of its divisors is an integer number (933881805).

Almost surely, 231308859070 is an apocalyptic number.

31308859070 is a deficient number, since it is larger than the sum of its proper divisors (28459576450).

31308859070 is a wasteful number, since it uses less digits than its factorization.

31308859070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12749.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 31308859070 in words is "thirty-one billion, three hundred eight million, eight hundred fifty-nine thousand, seventy".

Divisors: 1 2 5 10 29 53 58 106 145 163 265 290 326 530 815 1537 1630 3074 4727 7685 8639 9454 12497 15370 17278 23635 24994 43195 47270 62485 86390 124970 250531 362413 501062 662341 724826 1252655 1324682 1812065 2037011 2505310 3311705 3624130 4074022 6623410 10185055 19207889 20370110 38415778 59073319 96039445 107961583 118146638 192078890 215923166 295366595 539807915 590733190 1079615830 3130885907 6261771814 15654429535 31308859070