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379672640 = 26529163251
BaseRepresentation
bin10110101000010…
…101100001000000
3222110102100221122
4112220111201000
51234144011030
6101401411412
712260110214
oct2650254100
9873370848
10379672640
11185351746
12a7199b68
1360875189
14385d2944
15234ea8e5
hex16a15840

379672640 has 112 divisors (see below), whose sum is σ = 944758080. Its totient is φ = 145152000.

The previous prime is 379672613. The next prime is 379672681. The reversal of 379672640 is 46276973.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 379672591 and 379672600.

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, 1512515 + ... + 1512765.

It is an arithmetic number, because the mean of its divisors is an integer number (8435340).

Almost surely, 2379672640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 379672640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472379040).

379672640 is an abundant number, since it is smaller than the sum of its proper divisors (565085440).

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

379672640 is a wasteful number, since it uses less digits than its factorization.

379672640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 379672640 is about 19485.1902736412. The cubic root of 379672640 is about 724.1075916332.

The spelling of 379672640 in words is "three hundred seventy-nine million, six hundred seventy-two thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 145 160 163 232 251 290 320 326 464 502 580 652 815 928 1004 1160 1255 1304 1630 1856 2008 2320 2510 2608 3260 4016 4640 4727 5020 5216 6520 7279 8032 9280 9454 10040 10432 13040 14558 16064 18908 20080 23635 26080 29116 36395 37816 40160 40913 47270 52160 58232 72790 75632 80320 81826 94540 116464 145580 151264 163652 189080 204565 232928 291160 302528 327304 378160 409130 465856 582320 654608 756320 818260 1164640 1186477 1309216 1512640 1636520 2329280 2372954 2618432 3273040 4745908 5932385 6546080 9491816 11864770 13092160 18983632 23729540 37967264 47459080 75934528 94918160 189836320 379672640