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69542972 = 22163106661
BaseRepresentation
bin1000010010100…
…10010000111100
311211212011000122
410021102100330
5120300333342
610522314112
71503051122
oct411222074
9154764018
1069542972
1136289734
121b358938
131153b7b5
149343912
15618a4d2
hex425243c

69542972 has 12 divisors (see below), whose sum is σ = 122447976. Its totient is φ = 34557840.

The previous prime is 69542969. The next prime is 69542987. The reversal of 69542972 is 27924596.

It is a congruent number.

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, 52679 + ... + 53982.

It is an arithmetic number, because the mean of its divisors is an integer number (10203998).

Almost surely, 269542972 is an apocalyptic number.

It is an amenable number.

69542972 is a deficient number, since it is larger than the sum of its proper divisors (52905004).

69542972 is a wasteful number, since it uses less digits than its factorization.

69542972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106828 (or 106826 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 69542972 is about 8339.2428912941. The cubic root of 69542972 is about 411.2296457377.

The spelling of 69542972 in words is "sixty-nine million, five hundred forty-two thousand, nine hundred seventy-two".

Divisors: 1 2 4 163 326 652 106661 213322 426644 17385743 34771486 69542972