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378798920 = 23531305483
BaseRepresentation
bin10110100101000…
…000001101001000
3222101202222102122
4112211000031020
51233433031140
6101330550412
712246511013
oct2645001510
9871688378
10378798920
11184905265
12a6a38408
136062a596
143844637a
15233c6ab5
hex16940348

378798920 has 32 divisors (see below), whose sum is σ = 879793920. Its totient is φ = 146631360.

The previous prime is 378798887. The next prime is 378798923. The reversal of 378798920 is 29897873.

It is not an unprimeable number, because it can be changed into a prime (378798923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151502 + ... + 153981.

It is an arithmetic number, because the mean of its divisors is an integer number (27493560).

Almost surely, 2378798920 is an apocalyptic number.

It is an amenable number.

378798920 is an abundant number, since it is smaller than the sum of its proper divisors (500995000).

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

378798920 is a wasteful number, since it uses less digits than its factorization.

378798920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305525 (or 305521 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The square root of 378798920 is about 19462.7572558464. The cubic root of 378798920 is about 723.5517152042.

The spelling of 378798920 in words is "three hundred seventy-eight million, seven hundred ninety-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 305483 610966 1221932 1527415 2443864 3054830 6109660 9469973 12219320 18939946 37879892 47349865 75759784 94699730 189399460 378798920