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1830131874 = 23333891331
BaseRepresentation
bin110110100010101…
…1001100010100010
311201112201022222000
41231011121202202
512222003204444
6501334024430
763231602304
oct15505314242
94645638860
101830131874
1185a07518a
12430aa8116
1323221008c
141350bb974
15aaa0b469
hex6d1598a2

1830131874 has 16 divisors (see below), whose sum is σ = 4066959840. Its totient is φ = 610043940.

The previous prime is 1830131869. The next prime is 1830131893. The reversal of 1830131874 is 4781310381.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16945612 + ... + 16945719.

It is an arithmetic number, because the mean of its divisors is an integer number (254184990).

Almost surely, 21830131874 is an apocalyptic number.

1830131874 is an abundant number, since it is smaller than the sum of its proper divisors (2236827966).

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

1830131874 is a wasteful number, since it uses less digits than its factorization.

1830131874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33891342 (or 33891336 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1830131874 is about 42780.0406030663. The cubic root of 1830131874 is about 1223.1905812551.

The spelling of 1830131874 in words is "one billion, eight hundred thirty million, one hundred thirty-one thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 9 18 27 54 33891331 67782662 101673993 203347986 305021979 610043958 915065937 1830131874