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53120408 = 2311603641
BaseRepresentation
bin1100101010100…
…0110110011000
310200221210111112
43022220312120
5102044323113
65134315452
71213341665
oct312506630
9120853445
1053120408
1127a92170
1215958b88
13b00b7c3
1470aaa6c
1549e45a8
hex32a8d98

53120408 has 16 divisors (see below), whose sum is σ = 108655560. Its totient is φ = 24145600.

The previous prime is 53120399. The next prime is 53120449. The reversal of 53120408 is 80402135.

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, 301733 + ... + 301908.

Almost surely, 253120408 is an apocalyptic number.

It is an amenable number.

53120408 is an abundant number, since it is smaller than the sum of its proper divisors (55535152).

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

53120408 is a wasteful number, since it uses less digits than its factorization.

53120408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603658 (or 603654 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 53120408 is about 7288.3748531480. The cubic root of 53120408 is about 375.9128174206.

The spelling of 53120408 in words is "fifty-three million, one hundred twenty thousand, four hundred eight".

Divisors: 1 2 4 8 11 22 44 88 603641 1207282 2414564 4829128 6640051 13280102 26560204 53120408