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39740948687 = 1143174148259
BaseRepresentation
bin100101000000101111…
…101100000011001111
310210120121121100220102
4211000233230003033
51122342140324222
630131242241315
72604550330106
oct450057540317
9123517540812
1039740948687
1115943802a50
1278511b623b
1339944c106b
141cd001703d
151078db5d92
hex940bec0cf

39740948687 has 16 divisors (see below), whose sum is σ = 44388389760. Its totient is φ = 35266946400.

The previous prime is 39740948669. The next prime is 39740948699. The reversal of 39740948687 is 78684904793.

It is a cyclic number.

It is not a de Polignac number, because 39740948687 - 214 = 39740932303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39740948627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 799364 + ... + 847622.

It is an arithmetic number, because the mean of its divisors is an integer number (2774274360).

Almost surely, 239740948687 is an apocalyptic number.

39740948687 is a deficient number, since it is larger than the sum of its proper divisors (4647441073).

39740948687 is a wasteful number, since it uses less digits than its factorization.

39740948687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50054.

The product of its (nonzero) digits is 73156608, while the sum is 65.

The spelling of 39740948687 in words is "thirty-nine billion, seven hundred forty million, nine hundred forty-eight thousand, six hundred eighty-seven".

Divisors: 1 11 43 473 1741 19151 48259 74863 530849 823493 2075137 22826507 84018919 924208109 3612813517 39740948687