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72823982 = 2711472883
BaseRepresentation
bin1000101011100…
…11010010101110
312002000211201112
410111303102232
5122120331412
611120512022
71542664550
oct425632256
9162024645
1072823982
113811a810
122047b612
131211a01a
1499594d0
1565d7722
hex45734ae

72823982 has 16 divisors (see below), whose sum is σ = 136190592. Its totient is φ = 28372920.

The previous prime is 72823981. The next prime is 72824027. The reversal of 72823982 is 28932827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72823981) 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, 236288 + ... + 236595.

It is an arithmetic number, because the mean of its divisors is an integer number (8511912).

Almost surely, 272823982 is an apocalyptic number.

72823982 is a deficient number, since it is larger than the sum of its proper divisors (63366610).

72823982 is a wasteful number, since it uses less digits than its factorization.

72823982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472903.

The product of its digits is 96768, while the sum is 41.

The square root of 72823982 is about 8533.6968542362. The cubic root of 72823982 is about 417.5977411090.

The spelling of 72823982 in words is "seventy-two million, eight hundred twenty-three thousand, nine hundred eighty-two".

Divisors: 1 2 7 11 14 22 77 154 472883 945766 3310181 5201713 6620362 10403426 36411991 72823982