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53338990 = 2510914889
BaseRepresentation
bin1100101101111…
…0001101101110
310201100220100011
43023132031232
5102123321430
65143123434
71215242155
oct313361556
9121326304
1053338990
1128121411
1215a4357a
13b087143
14712659c
154a3922a
hex32de36e

53338990 has 16 divisors (see below), whose sum is σ = 96117840. Its totient is φ = 21311680.

The previous prime is 53338931. The next prime is 53338997. The reversal of 53338990 is 9983335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53338997) 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, 8466 + ... + 13354.

It is an arithmetic number, because the mean of its divisors is an integer number (6007365).

Almost surely, 253338990 is an apocalyptic number.

53338990 is a deficient number, since it is larger than the sum of its proper divisors (42778850).

53338990 is a wasteful number, since it uses less digits than its factorization.

53338990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5987.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 53338990 is about 7303.3547086253. The cubic root of 53338990 is about 376.4277188998.

The spelling of 53338990 in words is "fifty-three million, three hundred thirty-eight thousand, nine hundred ninety".

Divisors: 1 2 5 10 1091 2182 4889 5455 9778 10910 24445 48890 5333899 10667798 26669495 53338990