Search a number
-
+
15112121667672 = 233629671736153
BaseRepresentation
bin1101101111101001000010…
…1001001101000001011000
31222111201000202001020111210
43123322100221031001120
53440044111121331142
652050225102023120
73116546314510101
oct333722051150130
958451022036453
1015112121667672
1148a7018788a47
1218409b6b77aa0
138580b4152a33
143a36057853a8
151b317ab5449c
hexdbe90a4d058

15112121667672 has 16 divisors (see below), whose sum is σ = 37780304169240. Its totient is φ = 5037373889216.

The previous prime is 15112121667653. The next prime is 15112121667673. The reversal of 15112121667672 is 27676612121151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15112121667673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314835868053 + ... + 314835868100.

Almost surely, 215112121667672 is an apocalyptic number.

15112121667672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15112121667672 is an abundant number, since it is smaller than the sum of its proper divisors (22668182501568).

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

15112121667672 is a wasteful number, since it uses less digits than its factorization.

15112121667672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629671736162 (or 629671736158 counting only the distinct ones).

The product of its digits is 423360, while the sum is 48.

The spelling of 15112121667672 in words is "fifteen trillion, one hundred twelve billion, one hundred twenty-one million, six hundred sixty-seven thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 629671736153 1259343472306 1889015208459 2518686944612 3778030416918 5037373889224 7556060833836 15112121667672