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232618012 = 22115286773
BaseRepresentation
bin11011101110101…
…11100000011100
3121012201012220221
431313113200130
5434022234022
635025451124
75523135424
oct1567274034
9535635827
10232618012
1110a3413a0
1265aa0aa4
1339267ac3
1422c73484
151564dcc7
hexddd781c

232618012 has 12 divisors (see below), whose sum is σ = 444089016. Its totient is φ = 105735440.

The previous prime is 232617947. The next prime is 232618013. The reversal of 232618012 is 210816232.

It is a super-2 number, since 2×2326180122 = 108222279013664288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232618013) 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, 2643343 + ... + 2643430.

It is an arithmetic number, because the mean of its divisors is an integer number (37007418).

Almost surely, 2232618012 is an apocalyptic number.

232618012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

232618012 is a deficient number, since it is larger than the sum of its proper divisors (211471004).

232618012 is a wasteful number, since it uses less digits than its factorization.

232618012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286788 (or 5286786 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 232618012 is about 15251.8199569756. The cubic root of 232618012 is about 615.0084930636.

The spelling of 232618012 in words is "two hundred thirty-two million, six hundred eighteen thousand, twelve".

Divisors: 1 2 4 11 22 44 5286773 10573546 21147092 58154503 116309006 232618012