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381359020 = 22574016793
BaseRepresentation
bin10110101110110…
…001001110101100
3222120121001020011
4112232301032230
51240111442040
6101501503004
712310332610
oct2656611654
9876531204
10381359020
111862a3749
12a7871a64
1361015933
1438911340
15237303ea
hex16bb13ac

381359020 has 48 divisors (see below), whose sum is σ = 917679168. Its totient is φ = 130406400.

The previous prime is 381359003. The next prime is 381359039. The reversal of 381359020 is 20953183.

It is a happy number.

381359020 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

381359020 is strictly pandigital in base 9.

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, 52744 + ... + 59536.

It is an arithmetic number, because the mean of its divisors is an integer number (19118316).

Almost surely, 2381359020 is an apocalyptic number.

It is an amenable number.

381359020 is an abundant number, since it is smaller than the sum of its proper divisors (536320148).

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

381359020 is a wasteful number, since it uses less digits than its factorization.

381359020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7210 (or 7208 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 381359020 is about 19528.4157063496. The cubic root of 381359020 is about 725.1780902175.

The spelling of 381359020 in words is "three hundred eighty-one million, three hundred fifty-nine thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 401 802 1604 2005 2807 4010 5614 6793 8020 11228 13586 14035 27172 28070 33965 47551 56140 67930 95102 135860 190204 237755 475510 951020 2723993 5447986 10895972 13619965 19067951 27239930 38135902 54479860 76271804 95339755 190679510 381359020