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141994820 = 22511645431
BaseRepresentation
bin10000111011010…
…10101101000100
3100220012002021102
420131222231010
5242322313240
622031235232
73342636032
oct1035525504
9326162242
10141994820
11731748a0
123b678b18
1323558306
1414c03552
15c6ec815
hex876ab44

141994820 has 24 divisors (see below), whose sum is σ = 325297728. Its totient is φ = 51634400.

The previous prime is 141994799. The next prime is 141994841. The reversal of 141994820 is 28499141.

It is an interprime number because it is at equal distance from previous prime (141994799) and next prime (141994841).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322496 + ... + 322935.

It is an arithmetic number, because the mean of its divisors is an integer number (13554072).

Almost surely, 2141994820 is an apocalyptic number.

141994820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141994820 is an abundant number, since it is smaller than the sum of its proper divisors (183302908).

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

141994820 is a wasteful number, since it uses less digits than its factorization.

141994820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645451 (or 645449 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 141994820 is about 11916.1579378590. The cubic root of 141994820 is about 521.7040007486.

The spelling of 141994820 in words is "one hundred forty-one million, nine hundred ninety-four thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 645431 1290862 2581724 3227155 6454310 7099741 12908620 14199482 28398964 35498705 70997410 141994820