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525252504990 = 23526596584587
BaseRepresentation
bin1111010010010110111…
…11010010110110011110
31212012202202020212210010
413221023133102312132
532101204120124430
61041144144024050
752643150425023
oct7511337226636
91765682225703
10525252504990
11192838389234
128596a002026
133a6b9a92c15
141b5cad3954a
15d9e2a81cb0
hex7a4b7d2d9e

525252504990 has 32 divisors (see below), whose sum is σ = 1261080293760. Its totient is φ = 140014636704.

The previous prime is 525252504961. The next prime is 525252504991. The reversal of 525252504990 is 99405252525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525252504991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3212524 + ... + 3372063.

It is an arithmetic number, because the mean of its divisors is an integer number (39408759180).

Almost surely, 2525252504990 is an apocalyptic number.

525252504990 is an abundant number, since it is smaller than the sum of its proper divisors (735827788770).

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

525252504990 is a wasteful number, since it uses less digits than its factorization.

525252504990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6587256.

The product of its (nonzero) digits is 1620000, while the sum is 48.

The spelling of 525252504990 in words is "five hundred twenty-five billion, two hundred fifty-two million, five hundred four thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 2659 5318 7977 13295 15954 26590 39885 79770 6584587 13169174 19753761 32922935 39507522 65845870 98768805 197537610 17508416833 35016833666 52525250499 87542084165 105050500998 175084168330 262626252495 525252504990