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234152420 = 22523509027
BaseRepresentation
bin11011111010011…
…10000111100100
3121022121011201212
431331032013210
5434420334140
635122410552
75542156055
oct1575160744
9538534655
10234152420
1111019a1a7
1266500a58
1339684338
142315272c
1515853765
hexdf4e1e4

234152420 has 24 divisors (see below), whose sum is σ = 513100224. Its totient is φ = 89588576.

The previous prime is 234152419. The next prime is 234152423. The reversal of 234152420 is 24251432.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (234152423) 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, 254054 + ... + 254973.

It is an arithmetic number, because the mean of its divisors is an integer number (21379176).

Almost surely, 2234152420 is an apocalyptic number.

234152420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234152420 is an abundant number, since it is smaller than the sum of its proper divisors (278947804).

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

234152420 is a wasteful number, since it uses less digits than its factorization.

234152420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509059 (or 509057 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 234152420 is about 15302.0397333166. The cubic root of 234152420 is about 616.3577818383.

The spelling of 234152420 in words is "two hundred thirty-four million, one hundred fifty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 509027 1018054 2036108 2545135 5090270 10180540 11707621 23415242 46830484 58538105 117076210 234152420