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38973139107 = 372380689729
BaseRepresentation
bin100100010010111110…
…101110100010100011
310201121002211121011120
4210102332232202203
51114304110422412
625523133343323
72546535134160
oct442276564243
9121532747146
1038973139107
111558a359281
127678037b43
1338a13cc176
141c5a06b067
15103179bb8c
hex912fae8a3

38973139107 has 16 divisors (see below), whose sum is σ = 61969712640. Its totient is φ = 21302088192.

The previous prime is 38973139103. The next prime is 38973139111. The reversal of 38973139107 is 70193137983.

38973139107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38973139103) and next prime (38973139111).

It is not a de Polignac number, because 38973139107 - 22 = 38973139103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38973139107.

It is not an unprimeable number, because it can be changed into a prime (38973139103) 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, 40344382 + ... + 40345347.

It is an arithmetic number, because the mean of its divisors is an integer number (3873107040).

Almost surely, 238973139107 is an apocalyptic number.

38973139107 is a deficient number, since it is larger than the sum of its proper divisors (22996573533).

38973139107 is a wasteful number, since it uses less digits than its factorization.

38973139107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80689762.

The product of its (nonzero) digits is 857304, while the sum is 51.

The spelling of 38973139107 in words is "thirty-eight billion, nine hundred seventy-three million, one hundred thirty-nine thousand, one hundred seven".

Divisors: 1 3 7 21 23 69 161 483 80689729 242069187 564828103 1694484309 1855863767 5567591301 12991046369 38973139107