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72814190 = 2520813499
BaseRepresentation
bin1000101011100…
…00111001101110
312002000100021212
410111300321232
5122120023230
611120354422
71542624161
oct425607156
9162010255
1072814190
1138113419
1220475a12
1312115727
149955ad8
1565d4895
hex4570e6e

72814190 has 16 divisors (see below), whose sum is σ = 131166000. Its totient is φ = 29103360.

The previous prime is 72814169. The next prime is 72814211. The reversal of 72814190 is 9141827.

It is an interprime number because it is at equal distance from previous prime (72814169) and next prime (72814211).

It is a super-2 number, since 2×728141902 = 10603812530712200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19061 + ... + 22559.

It is an arithmetic number, because the mean of its divisors is an integer number (8197875).

Almost surely, 272814190 is an apocalyptic number.

72814190 is a deficient number, since it is larger than the sum of its proper divisors (58351810).

72814190 is a wasteful number, since it uses less digits than its factorization.

72814190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 72814190 is about 8533.1231093897. The cubic root of 72814190 is about 417.5790233722.

The spelling of 72814190 in words is "seventy-two million, eight hundred fourteen thousand, one hundred ninety".

Divisors: 1 2 5 10 2081 3499 4162 6998 10405 17495 20810 34990 7281419 14562838 36407095 72814190