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138760699 = 7211435987
BaseRepresentation
bin10000100010101…
…01000111111011
3100200002202220011
420101111013323
5241010320244
621434042351
73303306100
oct1021250773
9320082804
10138760699
1171365a70
123a5793b7
132299522c
1414600aa7
15c2ae434
hex84551fb

138760699 has 24 divisors (see below), whose sum is σ = 180214848. Its totient is φ = 105593040.

The previous prime is 138760697. The next prime is 138760717. The reversal of 138760699 is 996067831.

138760699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138760699 - 21 = 138760697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (138760697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20184 + ... + 26170.

It is an arithmetic number, because the mean of its divisors is an integer number (7508952).

Almost surely, 2138760699 is an apocalyptic number.

138760699 is a deficient number, since it is larger than the sum of its proper divisors (41454149).

138760699 is a wasteful number, since it uses less digits than its factorization.

138760699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055 (or 6048 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 138760699 is about 11779.6731278928. The cubic root of 138760699 is about 517.7127089670.

The spelling of 138760699 in words is "one hundred thirty-eight million, seven hundred sixty thousand, six hundred ninety-nine".

Divisors: 1 7 11 43 49 77 301 473 539 2107 3311 5987 23177 41909 65857 257441 293363 460999 1802087 2831851 3226993 12614609 19822957 138760699