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53045445 = 354382241
BaseRepresentation
bin1100101001011…
…0100011000101
310200210222200010
43022112203011
5102034423240
65132540433
71212610305
oct312264305
9120728603
1053045445
1127a40912
1215921719
13acb364b
14708b605
1549cc280
hex32968c5

53045445 has 16 divisors (see below), whose sum is σ = 86847552. Its totient is φ = 27632640.

The previous prime is 53045411. The next prime is 53045453. The reversal of 53045445 is 54454035.

It is not a de Polignac number, because 53045445 - 26 = 53045381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40476 + ... + 41765.

It is an arithmetic number, because the mean of its divisors is an integer number (5427972).

Almost surely, 253045445 is an apocalyptic number.

It is an amenable number.

53045445 is a deficient number, since it is larger than the sum of its proper divisors (33802107).

53045445 is a wasteful number, since it uses less digits than its factorization.

53045445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82292.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 53045445 is about 7283.2303959164. The cubic root of 53045445 is about 375.7359060127.

The spelling of 53045445 in words is "fifty-three million, forty-five thousand, four hundred forty-five".

Divisors: 1 3 5 15 43 129 215 645 82241 246723 411205 1233615 3536363 10609089 17681815 53045445