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69949056 = 273182159
BaseRepresentation
bin1000010101101…
…01011010000000
311212121210001210
410022311122000
5120401332211
610535130120
71506362052
oct412653200
9155553053
1069949056
1136536841
121b513940
1311651598
14940b8d2
15621a9a6
hex42b5680

69949056 has 32 divisors (see below), whose sum is σ = 185803200. Its totient is φ = 23316224.

The previous prime is 69949037. The next prime is 69949057. The reversal of 69949056 is 65094996.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×699490562 = 9785740870582272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 69948996 and 69949014.

It is not an unprimeable number, because it can be changed into a prime (69949057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90696 + ... + 91463.

It is an arithmetic number, because the mean of its divisors is an integer number (5806350).

Almost surely, 269949056 is an apocalyptic number.

It is an amenable number.

69949056 is an abundant number, since it is smaller than the sum of its proper divisors (115854144).

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

69949056 is a wasteful number, since it uses less digits than its factorization.

69949056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182176 (or 182164 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 69949056 is about 8363.5552249029. Note that the first 3 decimals coincide. The cubic root of 69949056 is about 412.0285272609.

The spelling of 69949056 in words is "sixty-nine million, nine hundred forty-nine thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 182159 364318 546477 728636 1092954 1457272 2185908 2914544 4371816 5829088 8743632 11658176 17487264 23316352 34974528 69949056