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52912644 = 22319232073
BaseRepresentation
bin1100100111011…
…0001000000100
310200120020111120
43021312020010
5102021201034
65130033540
71211515161
oct311661004
9120506446
1052912644
1127960064
12158788b0
13ac68075
147055068
1549a2c49
hex3276204

52912644 has 24 divisors (see below), whose sum is σ = 129961440. Its totient is φ = 16709184.

The previous prime is 52912637. The next prime is 52912649. The reversal of 52912644 is 44621925.

It is not an unprimeable number, because it can be changed into a prime (52912649) 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, 115809 + ... + 116264.

It is an arithmetic number, because the mean of its divisors is an integer number (5415060).

Almost surely, 252912644 is an apocalyptic number.

It is an amenable number.

52912644 is an abundant number, since it is smaller than the sum of its proper divisors (77048796).

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

52912644 is a wasteful number, since it uses less digits than its factorization.

52912644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232099 (or 232097 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 52912644 is about 7274.1077803398. The cubic root of 52912644 is about 375.4220882879.

The spelling of 52912644 in words is "fifty-two million, nine hundred twelve thousand, six hundred forty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 232073 464146 696219 928292 1392438 2784876 4409387 8818774 13228161 17637548 26456322 52912644