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142321163401420 = 22517661633270283
BaseRepresentation
bin100000010111000010111010…
…011000110111100011001100
3200122220202210120200121021121
4200113002322120313203030
5122123242220312321140
61222405235002210324
741656236050461333
oct4027027230674314
9618822716617247
10142321163401420
1141391080487023
1213b669657b39a4
136154a9c4ca1b3
1427205498c8d1a
15116c177b0064a
hex8170ba6378cc

142321163401420 has 48 divisors (see below), whose sum is σ = 316934045574048. Its totient is φ = 53498673423360.

The previous prime is 142321163401411. The next prime is 142321163401457. The reversal of 142321163401420 is 24104361123241.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316410402 + ... + 316859881.

It is an arithmetic number, because the mean of its divisors is an integer number (6602792616126).

Almost surely, 2142321163401420 is an apocalyptic number.

142321163401420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142321163401420 is an abundant number, since it is smaller than the sum of its proper divisors (174612882172628).

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

142321163401420 is a wasteful number, since it uses less digits than its factorization.

142321163401420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633270970 (or 633270968 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 142321163401420 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred sixty-three million, four hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 661 1322 2644 3305 6610 11237 13220 22474 44948 56185 112370 224740 633270283 1266540566 2533081132 3166351415 6332702830 10765594811 12665405660 21531189622 43062379244 53827974055 107655948110 215311896220 418591657063 837183314126 1674366628252 2092958285315 4185916570630 7116058170071 8371833141260 14232116340142 28464232680284 35580290850355 71160581700710 142321163401420