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69440972 = 22192393823
BaseRepresentation
bin1000010001110…
…01010111001100
311211122222002212
410020321113030
5120234102342
610520205552
71502144546
oct410712714
9154588085
1069440972
113621a037
121b3098b8
1311504243
149318696
15616a182
hex42395cc

69440972 has 24 divisors (see below), whose sum is σ = 128486400. Its totient is φ = 32746896.

The previous prime is 69440963. The next prime is 69440999. The reversal of 69440972 is 27904496.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16253 + ... + 20075.

It is an arithmetic number, because the mean of its divisors is an integer number (5353600).

Almost surely, 269440972 is an apocalyptic number.

It is an amenable number.

69440972 is a deficient number, since it is larger than the sum of its proper divisors (59045428).

69440972 is a wasteful number, since it uses less digits than its factorization.

69440972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085 (or 4083 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 69440972 is about 8333.1249840621. The cubic root of 69440972 is about 411.0284945800.

The spelling of 69440972 in words is "sixty-nine million, four hundred forty thousand, nine hundred seventy-two".

Divisors: 1 2 4 19 38 76 239 478 956 3823 4541 7646 9082 15292 18164 72637 145274 290548 913697 1827394 3654788 17360243 34720486 69440972