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53074144 = 251987293
BaseRepresentation
bin1100101001110…
…1100011100000
310200212110001001
43022131203200
5102041333034
65133321344
71213060054
oct312354340
9120773031
1053074144
1127a60432
1215936254
13acc3726
147097c64
1549d5a14
hex329d8e0

53074144 has 24 divisors (see below), whose sum is σ = 109990440. Its totient is φ = 25140096.

The previous prime is 53074127. The next prime is 53074157. The reversal of 53074144 is 44147035.

It is a super-2 number, since 2×530741442 = 5633729522665472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43039 + ... + 44254.

It is an arithmetic number, because the mean of its divisors is an integer number (4582935).

Almost surely, 253074144 is an apocalyptic number.

It is an amenable number.

53074144 is an abundant number, since it is smaller than the sum of its proper divisors (56916296).

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

53074144 is a wasteful number, since it uses less digits than its factorization.

53074144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87322 (or 87314 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 53074144 is about 7285.2003404162. The cubic root of 53074144 is about 375.8036548437.

The spelling of 53074144 in words is "fifty-three million, seventy-four thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 87293 174586 349172 698344 1396688 1658567 2793376 3317134 6634268 13268536 26537072 53074144