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11623621880 = 2351327918009
BaseRepresentation
bin10101101001101001…
…00110010011111000
31010000001220011122002
422310310212103320
5142301121400010
65201222320132
7561021104303
oct126464462370
933001804562
1011623621880
114a25260182
122304889048
1311331a4090
147c3a45b3a
154806c61a5
hex2b4d264f8

11623621880 has 64 divisors (see below), whose sum is σ = 28178539200. Its totient is φ = 4289725440.

The previous prime is 11623621847. The next prime is 11623621931. The reversal of 11623621880 is 8812632611.

11623621880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×116236218803 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447316 + ... + 1455324.

It is an arithmetic number, because the mean of its divisors is an integer number (440289675).

Almost surely, 211623621880 is an apocalyptic number.

11623621880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11623621880 is an abundant number, since it is smaller than the sum of its proper divisors (16554917320).

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

11623621880 is a wasteful number, since it uses less digits than its factorization.

11623621880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10824 (or 10820 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 11623621880 in words is "eleven billion, six hundred twenty-three million, six hundred twenty-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 2791 5582 8009 11164 13955 16018 22328 27910 32036 36283 40045 55820 64072 72566 80090 104117 111640 145132 160180 181415 208234 290264 320360 362830 416468 520585 725660 832936 1041170 1451320 2082340 4164680 22353119 44706238 89412476 111765595 178824952 223531190 290590547 447062380 581181094 894124760 1162362188 1452952735 2324724376 2905905470 5811810940 11623621880