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71949704 = 2323391031
BaseRepresentation
bin1000100100111…
…01110110001000
312000101102102212
410102131312020
5121404342304
611050044252
71532363621
oct422356610
9160342385
1071949704
1137682972
1220119688
1311ba20b8
1497aca48
1564b366e
hex449dd88

71949704 has 16 divisors (see below), whose sum is σ = 140771520. Its totient is φ = 34410640.

The previous prime is 71949679. The next prime is 71949743. The reversal of 71949704 is 40794917.

It is a happy 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, 195332 + ... + 195699.

It is an arithmetic number, because the mean of its divisors is an integer number (8798220).

Almost surely, 271949704 is an apocalyptic number.

It is an amenable number.

71949704 is a deficient number, since it is larger than the sum of its proper divisors (68821816).

71949704 is a wasteful number, since it uses less digits than its factorization.

71949704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391060 (or 391056 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 71949704 is about 8482.3171362547. The cubic root of 71949704 is about 415.9198717712.

The spelling of 71949704 in words is "seventy-one million, nine hundred forty-nine thousand, seven hundred four".

Divisors: 1 2 4 8 23 46 92 184 391031 782062 1564124 3128248 8993713 17987426 35974852 71949704