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1868488452100 = 225225174441771
BaseRepresentation
bin11011001100001010100…
…101110010100000000100
320121121220011200000102201
4123030022211302200010
5221103131020431400
63550212144044244
7251664612535354
oct33141245624004
96547804600381
101868488452100
11660470024416
12262161003684
131072754862ca
1466614756b64
153390c5dd06a
hex1b30a972804

1868488452100 has 36 divisors (see below), whose sum is σ = 4070773860048. Its totient is φ = 744417700000.

The previous prime is 1868488452071. The next prime is 1868488452113. The reversal of 1868488452100 is 12548848681.

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, 37195786 + ... + 37245985.

It is an arithmetic number, because the mean of its divisors is an integer number (113077051668).

Almost surely, 21868488452100 is an apocalyptic number.

1868488452100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1868488452100 is an abundant number, since it is smaller than the sum of its proper divisors (2202285407948).

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

1868488452100 is a wasteful number, since it uses less digits than its factorization.

1868488452100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74442036 (or 74442029 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 55.

The spelling of 1868488452100 in words is "one trillion, eight hundred sixty-eight billion, four hundred eighty-eight million, four hundred fifty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 251 502 1004 1255 2510 5020 6275 12550 25100 74441771 148883542 297767084 372208855 744417710 1488835420 1861044275 3722088550 7444177100 18684884521 37369769042 74739538084 93424422605 186848845210 373697690420 467122113025 934244226050 1868488452100