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72474741 = 3229713911
BaseRepresentation
bin1000101000111…
…10000001110101
312001101002122200
410110132001311
5122023142431
611105215113
71540011423
oct424360165
9161332580
1072474741
1137a01389
1220331499
1312027081
1498a8113
156568ee6
hex451e075

72474741 has 24 divisors (see below), whose sum is σ = 109848960. Its totient is φ = 45981600.

The previous prime is 72474719. The next prime is 72474761. The reversal of 72474741 is 14747427.

It is not a de Polignac number, because 72474741 - 27 = 72474613 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 72474696 and 72474705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72474761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16576 + ... + 20486.

It is an arithmetic number, because the mean of its divisors is an integer number (4577040).

Almost surely, 272474741 is an apocalyptic number.

72474741 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

72474741 is a deficient number, since it is larger than the sum of its proper divisors (37374219).

72474741 is a wasteful number, since it uses less digits than its factorization.

72474741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017 (or 4014 counting only the distinct ones).

The product of its digits is 43904, while the sum is 36.

The square root of 72474741 is about 8513.2097941963. The cubic root of 72474741 is about 416.9291151530.

The spelling of 72474741 in words is "seventy-two million, four hundred seventy-four thousand, seven hundred forty-one".

Divisors: 1 3 9 29 71 87 213 261 639 2059 3911 6177 11733 18531 35199 113419 277681 340257 833043 1020771 2499129 8052749 24158247 72474741