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378871140 = 223537916661
BaseRepresentation
bin10110100101010…
…001110101100100
3222101220122111110
4112211101311210
51233442334030
6101332305020
712250231404
oct2645216544
9871818443
10378871140
1118495454a
12a6a72170
136065440b
1438464804
15233dd1b0
hex16951d64

378871140 has 48 divisors (see below), whose sum is σ = 1063702080. Its totient is φ = 100759680.

The previous prime is 378871093. The next prime is 378871147. The reversal of 378871140 is 41178873.

It is not an unprimeable number, because it can be changed into a prime (378871147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14410 + ... + 31070.

It is an arithmetic number, because the mean of its divisors is an integer number (22160460).

Almost surely, 2378871140 is an apocalyptic number.

378871140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378871140 is an abundant number, since it is smaller than the sum of its proper divisors (684830940).

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

378871140 is a wasteful number, since it uses less digits than its factorization.

378871140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17052 (or 17050 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 378871140 is about 19464.6125057757. The cubic root of 378871140 is about 723.5976952581.

The spelling of 378871140 in words is "three hundred seventy-eight million, eight hundred seventy-one thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 379 758 1137 1516 1895 2274 3790 4548 5685 7580 11370 16661 22740 33322 49983 66644 83305 99966 166610 199932 249915 333220 499830 999660 6314519 12629038 18943557 25258076 31572595 37887114 63145190 75774228 94717785 126290380 189435570 378871140