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72874645430 = 255322594327
BaseRepresentation
bin100001111011110101…
…0101101011110110110
320222002202111120001212
41003313222231132312
52143221402123210
653251140321422
75156621160056
oct1036752553666
9228082446055
1072874645430
11289a69237a4
12121596a3272
136b44b7b992
14375470b566
151d67b92805
hex10f7aad7b6

72874645430 has 24 divisors (see below), whose sum is σ = 133696099152. Its totient is φ = 28599849824.

The previous prime is 72874645429. The next prime is 72874645451. The reversal of 72874645430 is 3454647827.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1269074 + ... + 1325253.

It is an arithmetic number, because the mean of its divisors is an integer number (5570670798).

Almost surely, 272874645430 is an apocalyptic number.

72874645430 is a deficient number, since it is larger than the sum of its proper divisors (60821453722).

72874645430 is a wasteful number, since it uses less digits than its factorization.

72874645430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594440 (or 2594387 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 50.

The spelling of 72874645430 in words is "seventy-two billion, eight hundred seventy-four million, six hundred forty-five thousand, four hundred thirty".

Divisors: 1 2 5 10 53 106 265 530 2809 5618 14045 28090 2594327 5188654 12971635 25943270 137499331 274998662 687496655 1374993310 7287464543 14574929086 36437322715 72874645430