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138157000814 = 27131284326497
BaseRepresentation
bin1000000010101011001…
…1001000100001101110
3111012121101202211011002
42000222303020201232
54230421143011224
6143245104000302
712660442062560
oct2005263104156
9435541684132
10138157000814
1153657030618
1222938600092
1310049ac8231
146988961330
1538d90229ae
hex202acc886e

138157000814 has 32 divisors (see below), whose sum is σ = 238741468416. Its totient is φ = 58735272960.

The previous prime is 138157000811. The next prime is 138157000831. The reversal of 138157000814 is 418000751831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138157000811) 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, 5200814 + ... + 5227310.

It is an arithmetic number, because the mean of its divisors is an integer number (7460670888).

Almost surely, 2138157000814 is an apocalyptic number.

138157000814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138157000814 is a deficient number, since it is larger than the sum of its proper divisors (100584467602).

138157000814 is a wasteful number, since it uses less digits than its factorization.

138157000814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29480.

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 138157000814 in words is "one hundred thirty-eight billion, one hundred fifty-seven million, eight hundred fourteen", and thus it is an aban number.

Divisors: 1 2 7 14 131 262 917 1834 2843 5686 19901 26497 39802 52994 185479 370958 372433 744866 2607031 3471107 5214062 6942214 24297749 48595498 75330971 150661942 527316797 1054633594 9868357201 19736714402 69078500407 138157000814