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72669027275 = 5213239721609
BaseRepresentation
bin100001110101101101…
…0010101101111001011
320221120102121001222122
41003223122111233023
52142311232333100
653214513241455
75151543353165
oct1035332255713
9227512531878
1072669027275
1128900853839
121210086328b
136b113a8430
1437352a5935
151d54ac8985
hex10eb695bcb

72669027275 has 24 divisors (see below), whose sum is σ = 101260289760. Its totient is φ = 51330090240.

The previous prime is 72669027253. The next prime is 72669027289. The reversal of 72669027275 is 57272096627.

It is a de Polignac number, because none of the positive numbers 2k-72669027275 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4853330 + ... + 4868279.

It is an arithmetic number, because the mean of its divisors is an integer number (4219178740).

Almost surely, 272669027275 is an apocalyptic number.

72669027275 is a deficient number, since it is larger than the sum of its proper divisors (28591262485).

72669027275 is a wasteful number, since it uses less digits than its factorization.

72669027275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9721655 (or 9721650 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 72669027275 in words is "seventy-two billion, six hundred sixty-nine million, twenty-seven thousand, two hundred seventy-five".

Divisors: 1 5 13 23 25 65 115 299 325 575 1495 7475 9721609 48608045 126380917 223597007 243040225 631904585 1117985035 2906761091 3159522925 5589925175 14533805455 72669027275