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720216625972 = 22296208764017
BaseRepresentation
bin10100111101100000100…
…00011001001100110100
32112212000010122101221211
422132300100121030310
543300000424012342
61310510221451204
7103014432212014
oct12366020311464
92485003571854
10720216625972
11258495566a48
12b76bb110b04
1352bba9a060c
1426c04299c44
1513b03d63c17
hexa7b0419334

720216625972 has 12 divisors (see below), whose sum is σ = 1303840443780. Its totient is φ = 347690784896.

The previous prime is 720216625967. The next prime is 720216625987. The reversal of 720216625972 is 279526612027.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 127646140176 + 592570485796 = 357276^2 + 769786^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3104381893 + ... + 3104382124.

It is an arithmetic number, because the mean of its divisors is an integer number (108653370315).

Almost surely, 2720216625972 is an apocalyptic number.

It is an amenable number.

720216625972 is a deficient number, since it is larger than the sum of its proper divisors (583623817808).

720216625972 is a wasteful number, since it uses less digits than its factorization.

720216625972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208764050 (or 6208764048 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 720216625972 in words is "seven hundred twenty billion, two hundred sixteen million, six hundred twenty-five thousand, nine hundred seventy-two".

Divisors: 1 2 4 29 58 116 6208764017 12417528034 24835056068 180054156493 360108312986 720216625972