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380913916 = 22183152009
BaseRepresentation
bin10110101101000…
…100100011111100
3222112202102122211
4112231010203330
51240003221131
6101444150204
712303500125
oct2655044374
9875672584
10380913916
1118601a299
12a7698364
1360bbb166
143883704c
15236935b1
hex16b448fc

380913916 has 12 divisors (see below), whose sum is σ = 666976240. Its totient is φ = 190349280.

The previous prime is 380913913. The next prime is 380913931. The reversal of 380913916 is 619319083.

It is a super-2 number, since 2×3809139162 = 290190822804910112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380913913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18681 + ... + 33328.

Almost surely, 2380913916 is an apocalyptic number.

It is an amenable number.

380913916 is a deficient number, since it is larger than the sum of its proper divisors (286062324).

380913916 is a wasteful number, since it uses less digits than its factorization.

380913916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53844 (or 53842 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 380913916 is about 19517.0160629129. The cubic root of 380913916 is about 724.8958493274.

The spelling of 380913916 in words is "three hundred eighty million, nine hundred thirteen thousand, nine hundred sixteen".

Divisors: 1 2 4 1831 3662 7324 52009 104018 208036 95228479 190456958 380913916