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12620801525986 = 2199730553112067
BaseRepresentation
bin1011011110101000001001…
…1001000100100011100010
31122200112111100200011111001
42313222002121010203202
53123234400142312421
642501525521142214
72441552140634623
oct267520231044342
948615440604431
1012620801525986
1140264a748a795
1214b9bb4a8a96a
137071a0ac0344
14318bc878da4a
1516d469083691
hexb7a826448e2

12620801525986 has 32 divisors (see below), whose sum is σ = 20133858951360. Its totient is φ = 5916396266496.

The previous prime is 12620801525963. The next prime is 12620801525993. The reversal of 12620801525986 is 68952510802621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112562325 + ... + 112674391.

It is an arithmetic number, because the mean of its divisors is an integer number (629183092230).

Almost surely, 212620801525986 is an apocalyptic number.

12620801525986 is a deficient number, since it is larger than the sum of its proper divisors (7513057425374).

12620801525986 is a wasteful number, since it uses less digits than its factorization.

12620801525986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142738.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 12620801525986 in words is "twelve trillion, six hundred twenty billion, eight hundred one million, five hundred twenty-five thousand, nine hundred eighty-six".

Divisors: 1 2 19 38 97 194 1843 3686 30553 61106 112067 224134 580507 1161014 2129273 2963641 4258546 5927282 10870499 21740998 56309179 112618358 206539481 413078962 3423983051 6847966102 65055677969 130111355938 332126355947 664252711894 6310400762993 12620801525986