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16260431655380 = 22511181408348359
BaseRepresentation
bin1110110010011110110101…
…0000001011000111010100
32010120111000102212122211112
43230213231100023013110
54112402331000433010
654325534510154152
73265530440403623
oct354475520130724
963514012778745
1016260431655380
1151aa012840810
1219a74697b2958
1390c47680a543
1440301ad376ba
151d2e8791aa05
hexec9ed40b1d4

16260431655380 has 48 divisors (see below), whose sum is σ = 37456978366080. Its totient is φ = 5880216355200.

The previous prime is 16260431655367. The next prime is 16260431655443. The reversal of 16260431655380 is 8355613406261.

It is a happy number.

16260431655380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 204134360 + ... + 204213999.

It is an arithmetic number, because the mean of its divisors is an integer number (780353715960).

Almost surely, 216260431655380 is an apocalyptic number.

16260431655380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16260431655380 is an abundant number, since it is smaller than the sum of its proper divisors (21196546710700).

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

16260431655380 is a wasteful number, since it uses less digits than its factorization.

16260431655380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408348560 (or 408348558 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 16260431655380 in words is "sixteen trillion, two hundred sixty billion, four hundred thirty-one million, six hundred fifty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 181 220 362 724 905 1810 1991 3620 3982 7964 9955 19910 39820 408348359 816696718 1633393436 2041741795 4083483590 4491831949 8166967180 8983663898 17967327796 22459159745 44918319490 73911052979 89836638980 147822105958 295644211916 369555264895 739110529790 813021582769 1478221059580 1626043165538 3252086331076 4065107913845 8130215827690 16260431655380