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69442492 = 22719130531
BaseRepresentation
bin1000010001110…
…01101110111100
311211200001012011
410020321232330
5120234124432
610520221004
71502152150
oct410715674
9154601164
1069442492
1136220199
121b30a764
1311504b42
149319060
15616a847
hex4239bbc

69442492 has 24 divisors (see below), whose sum is σ = 146195840. Its totient is φ = 28194480.

The previous prime is 69442487. The next prime is 69442507. The reversal of 69442492 is 29424496.

It is a congruent number.

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, 64734 + ... + 65797.

Almost surely, 269442492 is an apocalyptic number.

It is an amenable number.

69442492 is an abundant number, since it is smaller than the sum of its proper divisors (76753348).

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

69442492 is a wasteful number, since it uses less digits than its factorization.

69442492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130561 (or 130559 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 69442492 is about 8333.2161858433. The cubic root of 69442492 is about 411.0314935720.

The spelling of 69442492 in words is "sixty-nine million, four hundred forty-two thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 130531 261062 522124 913717 1827434 2480089 3654868 4960178 9920356 17360623 34721246 69442492