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130021092 = 22331203899
BaseRepresentation
bin1111011111111…
…11011011100100
3100001122202102000
413233333123210
5231241133332
620522445300
73136106145
oct757773344
9301582360
10130021092
1167436853
1237663830
1320c25276
14133a7acc
15b634b7c
hex7bff6e4

130021092 has 24 divisors (see below), whose sum is σ = 337092000. Its totient is φ = 43340328.

The previous prime is 130021051. The next prime is 130021097. The reversal of 130021092 is 290120031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130021097) 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, 601842 + ... + 602057.

It is an arithmetic number, because the mean of its divisors is an integer number (14045500).

Almost surely, 2130021092 is an apocalyptic number.

130021092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130021092 is an abundant number, since it is smaller than the sum of its proper divisors (207070908).

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

130021092 is a wasteful number, since it uses less digits than its factorization.

130021092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203912 (or 1203904 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 130021092 is about 11402.6791588644. The cubic root of 130021092 is about 506.6070972980.

The spelling of 130021092 in words is "one hundred thirty million, twenty-one thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1203899 2407798 3611697 4815596 7223394 10835091 14446788 21670182 32505273 43340364 65010546 130021092