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72498128 = 248275479
BaseRepresentation
bin1000101001000…
…11101111010000
312001102021201212
410110203233100
5122024420003
611105515252
71540136543
oct424435720
9161367655
1072498128
1137a17a0a
1220342b28
1312034901
1498b285a
156570dd8
hex4523bd0

72498128 has 20 divisors (see below), whose sum is σ = 140660640. Its totient is φ = 36198624.

The previous prime is 72498109. The next prime is 72498131. The reversal of 72498128 is 82189427.

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, 10493 + ... + 15971.

It is an arithmetic number, because the mean of its divisors is an integer number (7033032).

Almost surely, 272498128 is an apocalyptic number.

It is an amenable number.

72498128 is a deficient number, since it is larger than the sum of its proper divisors (68162512).

72498128 is a wasteful number, since it uses less digits than its factorization.

72498128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314 (or 6308 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 72498128 is about 8514.5832546285. The cubic root of 72498128 is about 416.9739568566.

The spelling of 72498128 in words is "seventy-two million, four hundred ninety-eight thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 827 1654 3308 5479 6616 10958 13232 21916 43832 87664 4531133 9062266 18124532 36249064 72498128