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72493606760 = 2351812340169
BaseRepresentation
bin100001110000011110…
…1001010011101101000
320221010012111210021112
41003200331022131220
52141431330404020
653145245325452
75144313330131
oct1034075123550
9227105453245
1072493606760
1128820829803
1212071b66888
136ab3c48b03
143719c80c88
151d444c72c5
hex10e0f4a768

72493606760 has 16 divisors (see below), whose sum is σ = 163110615300. Its totient is φ = 28997442688.

The previous prime is 72493606751. The next prime is 72493606807. The reversal of 72493606760 is 6760639427.

It can be written as a sum of positive squares in 2 ways, for example, as 67503314596 + 4990292164 = 259814^2 + 70642^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72493606699 and 72493606708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906170045 + ... + 906170124.

Almost surely, 272493606760 is an apocalyptic number.

It is an amenable number.

72493606760 is an abundant number, since it is smaller than the sum of its proper divisors (90617008540).

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

72493606760 is a wasteful number, since it uses less digits than its factorization.

72493606760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812340180 (or 1812340176 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 50.

The spelling of 72493606760 in words is "seventy-two billion, four hundred ninety-three million, six hundred six thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1812340169 3624680338 7249360676 9061700845 14498721352 18123401690 36246803380 72493606760