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234479380 = 22519617051
BaseRepresentation
bin11011111100111…
…01111100010100
3121100012210020111
431332131330110
5440011320010
635133412404
75545020232
oct1576357424
9540183214
10234479380
111103a2913
126663a104
133976a0c5
14231d9952
15158ba58a
hexdf9df14

234479380 has 24 divisors (see below), whose sum is σ = 518323680. Its totient is φ = 88855200.

The previous prime is 234479353. The next prime is 234479461. The reversal of 234479380 is 83974432.

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, 308146 + ... + 308905.

It is an arithmetic number, because the mean of its divisors is an integer number (21596820).

Almost surely, 2234479380 is an apocalyptic number.

234479380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234479380 is an abundant number, since it is smaller than the sum of its proper divisors (283844300).

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

234479380 is a wasteful number, since it uses less digits than its factorization.

234479380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617079 (or 617077 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 234479380 is about 15312.7195494465. The cubic root of 234479380 is about 616.6445332532.

The spelling of 234479380 in words is "two hundred thirty-four million, four hundred seventy-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 617051 1234102 2468204 3085255 6170510 11723969 12341020 23447938 46895876 58619845 117239690 234479380