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72746436513 = 361751752883
BaseRepresentation
bin100001111000000000…
…1101000011110100001
320221202211020212111110
41003300001220132201
52142441041432023
653230320333533
75153503336122
oct1036001503641
9227684225443
1072746436513
1128940515513
12121227742a9
136b2443c50a
143741696049
151d5b7b9a93
hex10f00687a1

72746436513 has 16 divisors (see below), whose sum is σ = 98600314176. Its totient is φ = 47695333440.

The previous prime is 72746436463. The next prime is 72746436527. The reversal of 72746436513 is 31563464727.

It is not a de Polignac number, because 72746436513 - 26 = 72746436449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72746436563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349170 + ... + 1402052.

It is an arithmetic number, because the mean of its divisors is an integer number (6162519636).

Almost surely, 272746436513 is an apocalyptic number.

It is an amenable number.

72746436513 is a deficient number, since it is larger than the sum of its proper divisors (25853877663).

72746436513 is a wasteful number, since it uses less digits than its factorization.

72746436513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60464.

The product of its digits is 2540160, while the sum is 48.

The spelling of 72746436513 in words is "seventy-two billion, seven hundred forty-six million, four hundred thirty-six thousand, five hundred thirteen".