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525680409372 = 223291510575889
BaseRepresentation
bin1111010011001001111…
…11100111101100011100
31212020212120102200020120
413221210333213230130
532103043141044442
61041254431314540
752656564516456
oct7514477475434
91766776380216
10525680409372
11192a37983118
1285a6937ba50
133a757624691
141b62bac52d6
15da1a4084ec
hex7a64fe7b1c

525680409372 has 24 divisors (see below), whose sum is σ = 1268883747600. Its totient is φ = 169184499456.

The previous prime is 525680409361. The next prime is 525680409377. The reversal of 525680409372 is 273904086525.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525680409377) 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, 755287597 + ... + 755288292.

It is an arithmetic number, because the mean of its divisors is an integer number (52870156150).

Almost surely, 2525680409372 is an apocalyptic number.

It is an amenable number.

525680409372 is an abundant number, since it is smaller than the sum of its proper divisors (743203338228).

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

525680409372 is a wasteful number, since it uses less digits than its factorization.

525680409372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510575925 (or 1510575923 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 525680409372 in words is "five hundred twenty-five billion, six hundred eighty million, four hundred nine thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 1510575889 3021151778 4531727667 6042303556 9063455334 18126910668 43806700781 87613401562 131420102343 175226803124 262840204686 525680409372