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13214945988 = 2233177197683
BaseRepresentation
bin11000100111010110…
…00001001011000100
31021002222020210221000
430103223001023010
5204031011232423
610023150053300
7645323121216
oct142353011304
937088223830
1013214945988
115671546572
1226897aa230
131327a8cb8a
148d511c5b6
1552525e843
hex313ac12c4

13214945988 has 48 divisors (see below), whose sum is σ = 36276327360. Its totient is φ = 4145864832.

The previous prime is 13214945977. The next prime is 13214945993. The reversal of 13214945988 is 88954941231.

It is a happy number.

13214945988 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 49 + 4 + 598 + 8 = 666.

It is a super-2 number, since 2×132149459882 (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3597006 + ... + 3600677.

It is an arithmetic number, because the mean of its divisors is an integer number (755756820).

Almost surely, 213214945988 is an apocalyptic number.

13214945988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13214945988 is an abundant number, since it is smaller than the sum of its proper divisors (23061381372).

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

13214945988 is a wasteful number, since it uses less digits than its factorization.

13214945988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7197713 (or 7197705 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 13214945988 in words is "thirteen billion, two hundred fourteen million, nine hundred forty-five thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 102 108 153 204 306 459 612 918 1836 7197683 14395366 21593049 28790732 43186098 64779147 86372196 122360611 129558294 194337441 244721222 259116588 367081833 388674882 489442444 734163666 777349764 1101245499 1468327332 2202490998 3303736497 4404981996 6607472994 13214945988