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142454404740 = 22352374240079
BaseRepresentation
bin1000010010101011110…
…0011011011010000100
3111121200220002120002110
42010222330123122010
54313221311422430
6145235340141020
713202103314154
oct2045274333204
9447626076073
10142454404740
115546188580a
1223737837770
1310583218bab
146c755b0764
153a8b4427b0
hex212af1b684

142454404740 has 24 divisors (see below), whose sum is σ = 398872333440. Its totient is φ = 37987841248.

The previous prime is 142454404711. The next prime is 142454404753. The reversal of 142454404740 is 47404454241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187119980 + ... + 1187120099.

It is an arithmetic number, because the mean of its divisors is an integer number (16619680560).

Almost surely, 2142454404740 is an apocalyptic number.

142454404740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142454404740 is an abundant number, since it is smaller than the sum of its proper divisors (256417928700).

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

142454404740 is a wasteful number, since it uses less digits than its factorization.

142454404740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374240091 (or 2374240089 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 39.

Adding to 142454404740 its reverse (47404454241), we get a palindrome (189858858981).

The spelling of 142454404740 in words is "one hundred forty-two billion, four hundred fifty-four million, four hundred four thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2374240079 4748480158 7122720237 9496960316 11871200395 14245440474 23742400790 28490880948 35613601185 47484801580 71227202370 142454404740