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379976940 = 223357100523
BaseRepresentation
bin10110101001011…
…111110011101100
3222110222211101000
4112221133303230
51234233230230
6101412120300
712262515330
oct2651376354
9873884330
10379976940
1118553a332
12a7306090
1360950835
14386717c0
152355ab60
hex16a5fcec

379976940 has 96 divisors (see below), whose sum is σ = 1351042560. Its totient is φ = 86851008.

The previous prime is 379976903. The next prime is 379976941. The reversal of 379976940 is 49679973.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (379976941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46482 + ... + 54041.

It is an arithmetic number, because the mean of its divisors is an integer number (14073360).

Almost surely, 2379976940 is an apocalyptic number.

379976940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

379976940 is an abundant number, since it is smaller than the sum of its proper divisors (971065620).

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

379976940 is a wasteful number, since it uses less digits than its factorization.

379976940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100548 (or 100540 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The square root of 379976940 is about 19492.9972041244. The cubic root of 379976940 is about 724.3009925401.

The spelling of 379976940 in words is "three hundred seventy-nine million, nine hundred seventy-six thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 84 90 105 108 126 135 140 180 189 210 252 270 315 378 420 540 630 756 945 1260 1890 3780 100523 201046 301569 402092 502615 603138 703661 904707 1005230 1206276 1407322 1507845 1809414 2010460 2110983 2714121 2814644 3015690 3518305 3618828 4221966 4523535 5428242 6031380 6332949 7036610 8443932 9047070 10554915 10856484 12665898 13570605 14073220 18094140 18998847 21109830 25331796 27141210 31664745 37997694 42219660 54282420 63329490 75995388 94994235 126658980 189988470 379976940