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142891757923780 = 22510516797895239
BaseRepresentation
bin100000011111010110010100…
…011110001110110111000100
3200201221022121021221121202101
4200133112110132032313010
5122212114310012030110
61223523322315121444
742045405653054005
oct4037262436166704
9621838537847671
10142891757923780
1141591066192a88
1214039468743284
136196833cc0b98
14273ddd86831ac
15117be2112e13a
hex81f59478edc4

142891757923780 has 24 divisors (see below), whose sum is σ = 300358203284160. Its totient is φ = 57102319999200.

The previous prime is 142891757923763. The next prime is 142891757923787. The reversal of 142891757923780 is 87329757198241.

142891757923780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142891757923787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3398926600 + ... + 3398968639.

It is an arithmetic number, because the mean of its divisors is an integer number (12514925136840).

Almost surely, 2142891757923780 is an apocalyptic number.

142891757923780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142891757923780 is an abundant number, since it is smaller than the sum of its proper divisors (157466445360380).

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

142891757923780 is a wasteful number, since it uses less digits than its factorization.

142891757923780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6797896299 (or 6797896297 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 73.

The spelling of 142891757923780 in words is "one hundred forty-two trillion, eight hundred ninety-one billion, seven hundred fifty-seven million, nine hundred twenty-three thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 1051 2102 4204 5255 10510 21020 6797895239 13595790478 27191580956 33989476195 67978952390 135957904780 7144587896189 14289175792378 28578351584756 35722939480945 71445878961890 142891757923780