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231948134 = 21110543097
BaseRepresentation
bin11011101001100…
…11111101100110
3121011110012000122
431310303331212
5433334320014
635003241542
75514345425
oct1564637546
9534405018
10231948134
11109a24080
12658192b2
1339091c22
1422b3b2bc
151556a58e
hexdd33f66

231948134 has 8 divisors (see below), whose sum is σ = 379551528. Its totient is φ = 105430960.

The previous prime is 231948133. The next prime is 231948161. The reversal of 231948134 is 431849132.

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

It is a junction number, because it is equal to n+sod(n) for n = 231948094 and 231948103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231948131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5271527 + ... + 5271570.

It is an arithmetic number, because the mean of its divisors is an integer number (47443941).

Almost surely, 2231948134 is an apocalyptic number.

231948134 is a deficient number, since it is larger than the sum of its proper divisors (147603394).

231948134 is a wasteful number, since it uses less digits than its factorization.

231948134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10543110.

The product of its digits is 20736, while the sum is 35.

The square root of 231948134 is about 15229.8435316979. The cubic root of 231948134 is about 614.4175718439.

The spelling of 231948134 in words is "two hundred thirty-one million, nine hundred forty-eight thousand, one hundred thirty-four".

Divisors: 1 2 11 22 10543097 21086194 115974067 231948134