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13658872038 = 2371917116381
BaseRepresentation
bin11001011100010000…
…11101100011100110
31022020220120120222120
430232020131203212
5210433132401123
610135205010410
7662323332240
oct145610354346
938226516876
1013658872038
11587a0937a9
1227923b3a06
131398a41006
14938079090
1554e1ed2e3
hex32e21d8e6

13658872038 has 32 divisors (see below), whose sum is σ = 32863453440. Its totient is φ = 3697138080.

The previous prime is 13658872033. The next prime is 13658872063. The reversal of 13658872038 is 83027885631.

13658872038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13658872033) 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, 8557393 + ... + 8558988.

It is an arithmetic number, because the mean of its divisors is an integer number (1026982920).

Almost surely, 213658872038 is an apocalyptic number.

13658872038 is an abundant number, since it is smaller than the sum of its proper divisors (19204581402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13658872038 is a wasteful number, since it uses less digits than its factorization.

13658872038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17116412.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 13658872038 in words is "thirteen billion, six hundred fifty-eight million, eight hundred seventy-two thousand, thirty-eight".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 17116381 34232762 51349143 102698286 119814667 239629334 325211239 359444001 650422478 718888002 975633717 1951267434 2276478673 4552957346 6829436019 13658872038