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23047400 = 2352115237
BaseRepresentation
bin101011111101…
…0110011101000
31121100221002102
41113322303220
521400004100
62141552532
7366620405
oct127726350
947327072
1023047400
1112011942
127875748
134a0c51c
1430bd2ac
152053cd5
hex15face8

23047400 has 24 divisors (see below), whose sum is σ = 53585670. Its totient is φ = 9218880.

The previous prime is 23047363. The next prime is 23047417. The reversal of 23047400 is 474032.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 17123044 + 5924356 = 4138^2 + 2434^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57419 + ... + 57818.

Almost surely, 223047400 is an apocalyptic number.

23047400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23047400 is an abundant number, since it is smaller than the sum of its proper divisors (30538270).

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

23047400 is a wasteful number, since it uses less digits than its factorization.

23047400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115253 (or 115244 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 23047400 is about 4800.7707714491. The cubic root of 23047400 is about 284.5819252308.

The spelling of 23047400 in words is "twenty-three million, forty-seven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 115237 230474 460948 576185 921896 1152370 2304740 2880925 4609480 5761850 11523700 23047400