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72571484 = 22163711083
BaseRepresentation
bin1000101001101…
…01101001011100
312001120000100202
410110311221130
5122034241414
611111243032
71540563446
oct424655134
9161500322
1072571484
1137a68037
1220379478
131205c10b
1498d1496
1565879de
hex4535a5c

72571484 has 12 divisors (see below), whose sum is σ = 127089144. Its totient is φ = 36260304.

The previous prime is 72571481. The next prime is 72571501. The reversal of 72571484 is 48417527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72571481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007 + ... + 12089.

It is an arithmetic number, because the mean of its divisors is an integer number (10590762).

Almost surely, 272571484 is an apocalyptic number.

It is an amenable number.

72571484 is a deficient number, since it is larger than the sum of its proper divisors (54517660).

72571484 is a wasteful number, since it uses less digits than its factorization.

72571484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724 (or 12722 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 72571484 is about 8518.8898337753. The cubic root of 72571484 is about 417.1145454563.

The spelling of 72571484 in words is "seventy-two million, five hundred seventy-one thousand, four hundred eighty-four".

Divisors: 1 2 4 1637 3274 6548 11083 22166 44332 18142871 36285742 72571484