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238714131790 = 251031511534843
BaseRepresentation
bin1101111001010001111…
…0001001010101001110
3211211011101202100102101
43132110132021111032
512402341304204130
6301355212145314
723150362432621
oct3362436112516
9754141670371
10238714131790
11922689a4442
123a320a6823a
1319683b73b74
14b7a79a9db8
15632210d1ca
hex379478954e

238714131790 has 32 divisors (see below), whose sum is σ = 436730651136. Its totient is φ = 93932330400.

The previous prime is 238714131781. The next prime is 238714131793. The reversal of 238714131790 is 97131417832.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 238714131790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238714131793) 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, 611892 + ... + 922951.

It is an arithmetic number, because the mean of its divisors is an integer number (13647832848).

Almost surely, 2238714131790 is an apocalyptic number.

238714131790 is a deficient number, since it is larger than the sum of its proper divisors (198016519346).

238714131790 is a wasteful number, since it uses less digits than its factorization.

238714131790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535104.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 238714131790 in words is "two hundred thirty-eight billion, seven hundred fourteen million, one hundred thirty-one thousand, seven hundred ninety".

Divisors: 1 2 5 10 103 151 206 302 515 755 1030 1510 15553 31106 77765 155530 1534843 3069686 7674215 15348430 158088829 231761293 316177658 463522586 790444145 1158806465 1580888290 2317612930 23871413179 47742826358 119357065895 238714131790