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3123989880 = 23351119124561
BaseRepresentation
bin1011101000110100…
…0100110101111000
322001201100010110220
42322031010311320
522344220134010
61233553540040
7140262322134
oct27215046570
98051303426
103123989880
111363457920
12732274620
133aa2a752b
14218c803c4
151343d6970
hexba344d78

3123989880 has 128 divisors (see below), whose sum is σ = 10762156800. Its totient is φ = 717465600.

The previous prime is 3123989873. The next prime is 3123989903. The reversal of 3123989880 is 889893213.

3123989880 is digitally balanced in base 2 and base 4, because in such bases 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 31 ways as a sum of consecutive naturals, for example, 37201 + ... + 87360.

It is an arithmetic number, because the mean of its divisors is an integer number (84079350).

Almost surely, 23123989880 is an apocalyptic number.

3123989880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3123989880 is an abundant number, since it is smaller than the sum of its proper divisors (7638166920).

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

3123989880 is a wasteful number, since it uses less digits than its factorization.

3123989880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124605 (or 124601 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 3123989880 is about 55892.6639193374. The cubic root of 3123989880 is about 1461.8513263280.

The spelling of 3123989880 in words is "three billion, one hundred twenty-three million, nine hundred eighty-nine thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 19 20 22 24 30 33 38 40 44 55 57 60 66 76 88 95 110 114 120 132 152 165 190 209 220 228 264 285 330 380 418 440 456 570 627 660 760 836 1045 1140 1254 1320 1672 2090 2280 2508 3135 4180 5016 6270 8360 12540 25080 124561 249122 373683 498244 622805 747366 996488 1245610 1370171 1494732 1868415 2366659 2491220 2740342 2989464 3736830 4110513 4733318 4982440 5480684 6850855 7099977 7473660 8221026 9466636 10961368 11833295 13701710 14199954 14947320 16442052 18933272 20552565 23666590 26033249 27403420 28399908 32884104 35499885 41105130 47333180 52066498 54806840 56799816 70999770 78099747 82210260 94666360 104132996 130166245 141999540 156199494 164420520 208265992 260332490 283999080 312398988 390498735 520664980 624797976 780997470 1041329960 1561994940 3123989880