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12159950 = 2521122109
BaseRepresentation
bin101110011000…
…101111001110
3211212210022112
4232120233032
511103104300
61112344022
7205233515
oct56305716
924783275
1012159950
116955a50
1240a5012
132699a4a
14188767c
151102e35
hexb98bce

12159950 has 24 divisors (see below), whose sum is σ = 24674760. Its totient is φ = 4421600.

The previous prime is 12159941. The next prime is 12159977. The reversal of 12159950 is 5995121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10505 + ... + 11604.

It is an arithmetic number, because the mean of its divisors is an integer number (1028115).

Almost surely, 212159950 is an apocalyptic number.

12159950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12159950 is an abundant number, since it is smaller than the sum of its proper divisors (12514810).

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

12159950 is a wasteful number, since it uses less digits than its factorization.

12159950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22132 (or 22127 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 12159950 is about 3487.1119855835. Note that the first 3 decimals coincide. The cubic root of 12159950 is about 229.9555679766.

The spelling of 12159950 in words is "twelve million, one hundred fifty-nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 22109 44218 110545 221090 243199 486398 552725 1105450 1215995 2431990 6079975 12159950