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69044872 = 2313663893
BaseRepresentation
bin1000001110110…
…00101010001000
311210220211202111
410013120222020
5120133413442
610503512104
71465605001
oct407305210
9153824674
1069044872
1135a79486
121b158634
13113c5b70
1492541a8
1560dcb17
hex41d8a88

69044872 has 16 divisors (see below), whose sum is σ = 139417740. Its totient is φ = 31866816.

The previous prime is 69044869. The next prime is 69044887. The reversal of 69044872 is 27844096.

It can be written as a sum of positive squares in 2 ways, for example, as 61058596 + 7986276 = 7814^2 + 2826^2 .

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, 331843 + ... + 332050.

Almost surely, 269044872 is an apocalyptic number.

It is an amenable number.

69044872 is an abundant number, since it is smaller than the sum of its proper divisors (70372868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69044872 is a wasteful number, since it uses less digits than its factorization.

69044872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663912 (or 663908 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 69044872 is about 8309.3244009366. The cubic root of 69044872 is about 410.2454845571.

The spelling of 69044872 in words is "sixty-nine million, forty-four thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 663893 1327786 2655572 5311144 8630609 17261218 34522436 69044872