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69431602952 = 238819851249
BaseRepresentation
bin100000010101001110…
…0100010111100001000
320122012210210212201002
41000222130202330020
52114143442243302
651521344114132
75005402613255
oct1005234427410
9218183725632
1069431602952
112749a369a48
1211558605948
13671676553a
14350933842c
151c15786c02
hex102a722f08

69431602952 has 16 divisors (see below), whose sum is σ = 130332037500. Its totient is φ = 34676392960.

The previous prime is 69431602931. The next prime is 69431602969. The reversal of 69431602952 is 25920613496.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64610522596 + 4821080356 = 254186^2 + 69434^2 .

It is a super-2 number, since 2×694316029522 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 69431602897 and 69431602906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4918577 + ... + 4932672.

Almost surely, 269431602952 is an apocalyptic number.

It is an amenable number.

69431602952 is a deficient number, since it is larger than the sum of its proper divisors (60900434548).

69431602952 is a wasteful number, since it uses less digits than its factorization.

69431602952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852136 (or 9852132 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 69431602952 in words is "sixty-nine billion, four hundred thirty-one million, six hundred two thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 881 1762 3524 7048 9851249 19702498 39404996 78809992 8678950369 17357900738 34715801476 69431602952