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1146488180 = 22557324409
BaseRepresentation
bin100010001010110…
…0000010101110100
32221220022122010012
41010111200111310
54322000110210
6305433115352
740260663065
oct10425402564
92856278105
101146488180
115391875a2
1227bb58b58
131536a9796
14ac3a056c
156a9ba305
hex44560574

1146488180 has 12 divisors (see below), whose sum is σ = 2407625220. Its totient is φ = 458595264.

The previous prime is 1146488173. The next prime is 1146488183. The reversal of 1146488180 is 818846411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 224880016 + 921608164 = 14996^2 + 30358^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146488183) 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, 28662185 + ... + 28662224.

It is an arithmetic number, because the mean of its divisors is an integer number (200635435).

Almost surely, 21146488180 is an apocalyptic number.

1146488180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146488180 is an abundant number, since it is smaller than the sum of its proper divisors (1261137040).

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

1146488180 is a wasteful number, since it uses less digits than its factorization.

1146488180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57324418 (or 57324416 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 1146488180 is about 33859.8313640219. The cubic root of 1146488180 is about 1046.6220028182.

The spelling of 1146488180 in words is "one billion, one hundred forty-six million, four hundred eighty-eight thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 57324409 114648818 229297636 286622045 573244090 1146488180