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39407984493 = 3192923840281
BaseRepresentation
bin100100101100111001…
…100001111101101101
310202201102002000220020
4210230321201331231
51121201421000433
630034225512353
72563365225033
oct445471417555
9122642060806
1039407984493
1115792864029
1277797a26b9
133940521027
141c9bb02553
151059a44cb3
hex92ce61f6d

39407984493 has 16 divisors (see below), whose sum is σ = 57216676800. Its totient is φ = 24031002240.

The previous prime is 39407984459. The next prime is 39407984503. The reversal of 39407984493 is 39448970493.

It is not a de Polignac number, because 39407984493 - 232 = 35113017197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39407984443) 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, 11918488 + ... + 11921793.

It is an arithmetic number, because the mean of its divisors is an integer number (3576042300).

Almost surely, 239407984493 is an apocalyptic number.

It is an amenable number.

39407984493 is a deficient number, since it is larger than the sum of its proper divisors (17808692307).

39407984493 is a wasteful number, since it uses less digits than its factorization.

39407984493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23840332.

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 39407984493 in words is "thirty-nine billion, four hundred seven million, nine hundred eighty-four thousand, four hundred ninety-three".

Divisors: 1 3 19 29 57 87 551 1653 23840281 71520843 452965339 691368149 1358896017 2074104447 13135994831 39407984493