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140775020 = 2257038751
BaseRepresentation
bin10000110010000…
…00111001101100
3100210220010000122
420121000321230
5242014300040
621545144112
73326365541
oct1031007154
9323803018
10140775020
11725113a1
123b18b038
132321c039
14149a6bc8
15c55b1b5
hex8640e6c

140775020 has 12 divisors (see below), whose sum is σ = 295627584. Its totient is φ = 56310000.

The previous prime is 140775013. The next prime is 140775023. The reversal of 140775020 is 20577041.

It is not an unprimeable number, because it can be changed into a prime (140775023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3519356 + ... + 3519395.

It is an arithmetic number, because the mean of its divisors is an integer number (24635632).

Almost surely, 2140775020 is an apocalyptic number.

140775020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140775020 is an abundant number, since it is smaller than the sum of its proper divisors (154852564).

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

140775020 is a wasteful number, since it uses less digits than its factorization.

140775020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038760 (or 7038758 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 140775020 is about 11864.8649381272. The cubic root of 140775020 is about 520.2058110361.

The spelling of 140775020 in words is "one hundred forty million, seven hundred seventy-five thousand, twenty".

Divisors: 1 2 4 5 10 20 7038751 14077502 28155004 35193755 70387510 140775020