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12926969690 = 251894768227
BaseRepresentation
bin11000000101000000…
…11110011101011010
31020100220101002201012
430002200132131122
5202433301012230
65534421453522
7635225300165
oct140240363532
936326332635
1012926969690
115533a34728
1226092712a2
1312b0211abb
148a8b98adc
15509d28395
hex30281e75a

12926969690 has 16 divisors (see below), whose sum is σ = 23270114592. Its totient is φ = 5170439184.

The previous prime is 12926969687. The next prime is 12926969719. The reversal of 12926969690 is 9696962921.

It is a super-2 number, since 2×129269696902 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155357 + ... + 223583.

It is an arithmetic number, because the mean of its divisors is an integer number (1454382162).

Almost surely, 212926969690 is an apocalyptic number.

12926969690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12926969690 is a deficient number, since it is larger than the sum of its proper divisors (10343144902).

12926969690 is a wasteful number, since it uses less digits than its factorization.

12926969690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87181.

The product of its (nonzero) digits is 5668704, while the sum is 59.

The spelling of 12926969690 in words is "twelve billion, nine hundred twenty-six million, nine hundred sixty-nine thousand, six hundred ninety".

Divisors: 1 2 5 10 18947 37894 68227 94735 136454 189470 341135 682270 1292696969 2585393938 6463484845 12926969690