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230570131 = 11153113691
BaseRepresentation
bin11011011111000…
…11100010010011
3121001212011202111
431233203202103
5433011221011
634513530151
75466546061
oct1557434223
9531764674
10230570131
11109172830
1265273957
13389cb93c
142289d031
1515397121
hexdbe3893

230570131 has 8 divisors (see below), whose sum is σ = 251713728. Its totient is φ = 209457000.

The previous prime is 230570107. The next prime is 230570141. The reversal of 230570131 is 131075032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230570131 - 217 = 230439059 is a prime.

It is a super-2 number, since 2×2305701312 = 106325170618714322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230570141) 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, 9996 + ... + 23686.

It is an arithmetic number, because the mean of its divisors is an integer number (31464216).

Almost surely, 2230570131 is an apocalyptic number.

230570131 is a deficient number, since it is larger than the sum of its proper divisors (21143597).

230570131 is a wasteful number, since it uses less digits than its factorization.

230570131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15233.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 230570131 is about 15184.5359165172. The cubic root of 230570131 is about 613.1984034535.

The spelling of 230570131 in words is "two hundred thirty million, five hundred seventy thousand, one hundred thirty-one".

Divisors: 1 11 1531 13691 16841 150601 20960921 230570131