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15112253044111 = 312178722375363
BaseRepresentation
bin1101101111101001100001…
…1110010111010110001111
31222111201100220020212002211
43123322120132113112033
53440044343234402421
652050250113531251
73116552501262556
oct333723036272617
958451326225084
1015112253044111
1148a7085960013
121840a32b73b27
13858105430b82
143a3618dc2d9d
151b31874559e1
hexdbe9879758f

15112253044111 has 8 divisors (see below), whose sum is σ = 15600461786624. Its totient is φ = 14624089095960.

The previous prime is 15112253044103. The next prime is 15112253044193. The reversal of 15112253044111 is 11144035221151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15112253044111 - 23 = 15112253044103 is a prime.

It is a super-2 number, since 2×151122530441112 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15112253042111) 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, 10512285 + ... + 11863078.

It is an arithmetic number, because the mean of its divisors is an integer number (1950057723328).

Almost surely, 215112253044111 is an apocalyptic number.

15112253044111 is a deficient number, since it is larger than the sum of its proper divisors (488208742513).

15112253044111 is a wasteful number, since it uses less digits than its factorization.

15112253044111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22397181.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 15112253044111 its reverse (11144035221151), we get a palindrome (26256288265262).

The spelling of 15112253044111 in words is "fifteen trillion, one hundred twelve billion, two hundred fifty-three million, forty-four thousand, one hundred eleven".

Divisors: 1 31 21787 675397 22375363 693636253 487492033681 15112253044111