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71445676 = 22291573923
BaseRepresentation
bin1000100001000…
…10110010101100
311222102211001011
410100202302230
5121242230201
611031155004
71525164301
oct420426254
9158384034
1071445676
1137369215
121bb15a64
1311a56863
1496bb0a8
156414151
hex4422cac

71445676 has 24 divisors (see below), whose sum is σ = 130198320. Its totient is φ = 34262592.

The previous prime is 71445623. The next prime is 71445677. The reversal of 71445676 is 67654417.

It is not an unprimeable number, because it can be changed into a prime (71445677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16251 + ... + 20173.

It is an arithmetic number, because the mean of its divisors is an integer number (5424930).

Almost surely, 271445676 is an apocalyptic number.

It is an amenable number.

71445676 is a deficient number, since it is larger than the sum of its proper divisors (58752644).

71445676 is a wasteful number, since it uses less digits than its factorization.

71445676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113 (or 4111 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 71445676 is about 8452.5544068051. The cubic root of 71445676 is about 414.9463829700.

The spelling of 71445676 in words is "seventy-one million, four hundred forty-five thousand, six hundred seventy-six".

Divisors: 1 2 4 29 58 116 157 314 628 3923 4553 7846 9106 15692 18212 113767 227534 455068 615911 1231822 2463644 17861419 35722838 71445676