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12216607502870 = 254725992781921
BaseRepresentation
bin1011000111000110011010…
…0011001111001000010110
31121020220012101022100100202
42301301212203033020112
53100124103010042440
641552122040340502
72400422631265151
oct261614643171026
947226171270322
1012216607502870
1139900414a3791
1214537b1174732
136a80375b9924
143034035acc98
15162bae38b615
hexb1c668cf216

12216607502870 has 16 divisors (see below), whose sum is σ = 22457763580608. Its totient is φ = 4782671873280.

The previous prime is 12216607502851. The next prime is 12216607502899. The reversal of 12216607502870 is 7820570661221.

It is a super-4 number, since 4×122166075028704 (a number of 53 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

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, 12996390491 + ... + 12996391430.

It is an arithmetic number, because the mean of its divisors is an integer number (1403610223788).

Almost surely, 212216607502870 is an apocalyptic number.

12216607502870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12216607502870 is a deficient number, since it is larger than the sum of its proper divisors (10241156077738).

12216607502870 is a wasteful number, since it uses less digits than its factorization.

12216607502870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25992781975.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 12216607502870 in words is "twelve trillion, two hundred sixteen billion, six hundred seven million, five hundred two thousand, eight hundred seventy".

Divisors: 1 2 5 10 47 94 235 470 25992781921 51985563842 129963909605 259927819210 1221660750287 2443321500574 6108303751435 12216607502870