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72874092140 = 2257309498523
BaseRepresentation
bin100001111011110100…
…0100110011001101100
320222002201110110002122
41003313220212121230
52143221231422030
653251120412112
75156613364013
oct1036750463154
9228081413078
1072874092140
11289a6586033
1212159477038
136b44a16ba5
143754605a7a
151d67ad38e5
hex10f7a2666c

72874092140 has 24 divisors (see below), whose sum is σ = 153056838480. Its totient is φ = 29145590208.

The previous prime is 72874092079. The next prime is 72874092143. The reversal of 72874092140 is 4129047827.

It is a junction number, because it is equal to n+sod(n) for n = 72874092091 and 72874092100.

It is not an unprimeable number, because it can be changed into a prime (72874092143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103082 + ... + 395441.

It is an arithmetic number, because the mean of its divisors is an integer number (6377368270).

Almost surely, 272874092140 is an apocalyptic number.

It is an amenable number.

72874092140 is an abundant number, since it is smaller than the sum of its proper divisors (80182746340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72874092140 is a wasteful number, since it uses less digits than its factorization.

72874092140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505841 (or 505839 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 72874092140 in words is "seventy-two billion, eight hundred seventy-four million, ninety-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7309 14618 29236 36545 73090 146180 498523 997046 1994092 2492615 4985230 9970460 3643704607 7287409214 14574818428 18218523035 36437046070 72874092140