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121968485044 = 22721274899907
BaseRepresentation
bin111000110010111100…
…0110110001010110100
3102122211012020000022221
41301211320312022310
53444242413010134
6132010451532124
711545331005600
oct1614570661264
9378735200287
10121968485044
11477aa03706a
121b77abba044
13b669c79013
145c9095a500
15328cbe05b4
hex1c65e362b4

121968485044 has 36 divisors (see below), whose sum is σ = 250248101376. Its totient is φ = 51860605104.

The previous prime is 121968485027. The next prime is 121968485083. The reversal of 121968485044 is 440584869121.

It is a super-2 number, since 2×1219684850442 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121968484982 and 121968485000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2425062 + ... + 2474845.

Almost surely, 2121968485044 is an apocalyptic number.

121968485044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121968485044 is an abundant number, since it is smaller than the sum of its proper divisors (128279616332).

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

121968485044 is a wasteful number, since it uses less digits than its factorization.

121968485044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900052 (or 4900043 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 121968485044 in words is "one hundred twenty-one billion, nine hundred sixty-eight million, four hundred eighty-five thousand, forty-four".

Divisors: 1 2 4 7 14 28 49 98 127 196 254 508 889 1778 3556 6223 12446 24892 4899907 9799814 19599628 34299349 68598698 137197396 240095443 480190886 622288189 960381772 1244576378 2489152756 4356017323 8712034646 17424069292 30492121261 60984242522 121968485044