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142993785432 = 23348712234239
BaseRepresentation
bin1000010100101100011…
…0000000001001011000
3111200002111000221022010
42011023012000021120
54320322402113212
6145405045025520
713221343056501
oct2051306001130
9450074027263
10142993785432
115570929a483
12238683b52a0
131063abab974
146cc7097ba8
153abd98903c
hex214b180258

142993785432 has 32 divisors (see below), whose sum is σ = 358218547200. Its totient is φ = 47566717344.

The previous prime is 142993785427. The next prime is 142993785479. The reversal of 142993785432 is 234587399241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6105432 + ... + 6128807.

It is an arithmetic number, because the mean of its divisors is an integer number (11194329600).

Almost surely, 2142993785432 is an apocalyptic number.

142993785432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142993785432 is an abundant number, since it is smaller than the sum of its proper divisors (215224761768).

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

142993785432 is a wasteful number, since it uses less digits than its factorization.

142993785432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12234735 (or 12234731 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 142993785432 in words is "one hundred forty-two billion, nine hundred ninety-three million, seven hundred eighty-five thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 487 974 1461 1948 2922 3896 5844 11688 12234239 24468478 36702717 48936956 73405434 97873912 146810868 293621736 5958074393 11916148786 17874223179 23832297572 35748446358 47664595144 71496892716 142993785432