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52100015 = 5118231151
BaseRepresentation
bin1100011010111…
…1101110101111
310122000221210012
43012233232233
5101314200030
65100403435
71201562042
oct306575657
9118027705
1052100015
1127455570
121554657b
13aa42216
146cc2c59
154892095
hex31afbaf

52100015 has 16 divisors (see below), whose sum is σ = 68345856. Its totient is φ = 37812000.

The previous prime is 52100003. The next prime is 52100023. The reversal of 52100015 is 51000125.

It is not a de Polignac number, because 52100015 - 224 = 35322799 is a prime.

It is a Duffinian number.

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, 44690 + ... + 45840.

It is an arithmetic number, because the mean of its divisors is an integer number (4271616).

Almost surely, 252100015 is an apocalyptic number.

52100015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

52100015 is a deficient number, since it is larger than the sum of its proper divisors (16245841).

52100015 is a wasteful number, since it uses less digits than its factorization.

52100015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 52100015 is about 7218.0340121116. The cubic root of 52100015 is about 373.4902618506.

The spelling of 52100015 in words is "fifty-two million, one hundred thousand, fifteen".

Divisors: 1 5 11 55 823 1151 4115 5755 9053 12661 45265 63305 947273 4736365 10420003 52100015