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71677948 = 2240144687
BaseRepresentation
bin1000100010110…
…11011111111100
311222212121122211
410101123133330
5121322143243
611040150204
71530152416
oct421333774
9158777584
1071677948
1137507781
1220008364
1311b084b4
14973b9b6
15645cd9d
hex445b7fc

71677948 has 12 divisors (see below), whose sum is σ = 125752032. Its totient is φ = 35748800.

The previous prime is 71677919. The next prime is 71677993. The reversal of 71677948 is 84977617.

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, 20740 + ... + 23947.

It is an arithmetic number, because the mean of its divisors is an integer number (10479336).

Almost surely, 271677948 is an apocalyptic number.

It is an amenable number.

71677948 is a deficient number, since it is larger than the sum of its proper divisors (54074084).

71677948 is a wasteful number, since it uses less digits than its factorization.

71677948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45092 (or 45090 counting only the distinct ones).

The product of its digits is 592704, while the sum is 49.

The square root of 71677948 is about 8466.2830096802. The cubic root of 71677948 is about 415.3955641974.

The spelling of 71677948 in words is "seventy-one million, six hundred seventy-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 401 802 1604 44687 89374 178748 17919487 35838974 71677948