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23150144 = 262315727
BaseRepresentation
bin101100001001…
…1111001000000
31121120011000202
41120103321000
521411301034
62144104332
7400526063
oct130237100
947504022
1023150144
1112082056
1279050a8
134a47214
1431088da
15207447e
hex1613e40

23150144 has 28 divisors (see below), whose sum is σ = 47938944. Its totient is φ = 11071104.

The previous prime is 23150143. The next prime is 23150147. The reversal of 23150144 is 44105132.

It is not an unprimeable number, because it can be changed into a prime (23150143) 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, 6392 + ... + 9335.

Almost surely, 223150144 is an apocalyptic number.

It is an amenable number.

23150144 is an abundant number, since it is smaller than the sum of its proper divisors (24788800).

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

23150144 is a wasteful number, since it uses less digits than its factorization.

23150144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15762 (or 15752 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 23150144 is about 4811.4596537849. The cubic root of 23150144 is about 285.0041817382.

Adding to 23150144 its reverse (44105132), we get a palindrome (67255276).

It can be divided in two parts, 2315014 and 4, that multiplied together give a triangular number (9260056 = T4303).

The spelling of 23150144 in words is "twenty-three million, one hundred fifty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 23 32 46 64 92 184 368 736 1472 15727 31454 62908 125816 251632 361721 503264 723442 1006528 1446884 2893768 5787536 11575072 23150144