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930157920 = 253251933997
BaseRepresentation
bin110111011100010…
…001010101100000
32101211020220210100
4313130101111200
53401110023140
6232144302400
732023132446
oct6734212540
92354226710
10930157920
1143806045a
1221b611a00
1311a925503
148b76ab96
15569d7530
hex37711560

930157920 has 144 divisors (see below), whose sum is σ = 3341323440. Its totient is φ = 234980352.

The previous prime is 930157913. The next prime is 930157937. The reversal of 930157920 is 29751039.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×9301579202 = 1730387512277452800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10362 + ... + 44358.

It is an arithmetic number, because the mean of its divisors is an integer number (23203635).

Almost surely, 2930157920 is an apocalyptic number.

930157920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 930157920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670661720).

930157920 is an abundant number, since it is smaller than the sum of its proper divisors (2411165520).

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

930157920 is a wasteful number, since it uses less digits than its factorization.

930157920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34037 (or 34026 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 930157920 is about 30498.4904544471. The cubic root of 930157920 is about 976.1552539011.

The spelling of 930157920 in words is "nine hundred thirty million, one hundred fifty-seven thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 32 36 38 40 45 48 57 60 72 76 80 90 95 96 114 120 144 152 160 171 180 190 228 240 285 288 304 342 360 380 456 480 570 608 684 720 760 855 912 1140 1368 1440 1520 1710 1824 2280 2736 3040 3420 4560 5472 6840 9120 13680 27360 33997 67994 101991 135988 169985 203982 271976 305973 339970 407964 509955 543952 611946 645943 679940 815928 1019910 1087904 1223892 1291886 1359880 1529865 1631856 1937829 2039820 2447784 2583772 2719760 3059730 3229715 3263712 3875658 4079640 4895568 5167544 5439520 5813487 6119460 6459430 7751316 8159280 9689145 9791136 10335088 11626974 12238920 12918860 15502632 16318560 19378290 20670176 23253948 24477840 25837720 29067435 31005264 38756580 46507896 48955680 51675440 58134870 62010528 77513160 93015792 103350880 116269740 155026320 186031584 232539480 310052640 465078960 930157920