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378130206 = 2389708109
BaseRepresentation
bin10110100010011…
…100111100011110
3222100112000010110
4112202130330132
51233300131311
6101304350450
712241024266
oct2642347436
9870460113
10378130206
11184498903
12a6775426
13604550ac
14383107a6
15232e38a6
hex1689cf1e

378130206 has 16 divisors (see below), whose sum is σ = 764758800. Its totient is φ = 124627008.

The previous prime is 378130199. The next prime is 378130211. The reversal of 378130206 is 602031873.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353521 + ... + 354588.

It is an arithmetic number, because the mean of its divisors is an integer number (47797425).

Almost surely, 2378130206 is an apocalyptic number.

378130206 is an abundant number, since it is smaller than the sum of its proper divisors (386628594).

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

378130206 is a wasteful number, since it uses less digits than its factorization.

378130206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708203.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 378130206 is about 19445.5703439112. The cubic root of 378130206 is about 723.1256895590.

The spelling of 378130206 in words is "three hundred seventy-eight million, one hundred thirty thousand, two hundred six".

Divisors: 1 2 3 6 89 178 267 534 708109 1416218 2124327 4248654 63021701 126043402 189065103 378130206