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142981980830 = 25131327828833
BaseRepresentation
bin1000010100101001100…
…0111110001010011110
3111200001122211012102122
42011022120332022132
54320311341341310
6145403544022542
713221140532653
oct2051230761236
9450048735378
10142981980830
1155702667507
1223864461a52
13106386078b0
146cc56a3c2a
153abc906555
hex214a63e29e

142981980830 has 32 divisors (see below), whose sum is σ = 277374271104. Its totient is φ = 52753499136.

The previous prime is 142981980821. The next prime is 142981980851. The reversal of 142981980830 is 38089189241.

It is a congruent number.

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, 241907 + ... + 586926.

It is an arithmetic number, because the mean of its divisors is an integer number (8667945972).

Almost surely, 2142981980830 is an apocalyptic number.

142981980830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142981980830 is a deficient number, since it is larger than the sum of its proper divisors (134392290274).

142981980830 is a wasteful number, since it uses less digits than its factorization.

142981980830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830180.

The product of its (nonzero) digits is 995328, while the sum is 53.

The spelling of 142981980830 in words is "one hundred forty-two billion, nine hundred eighty-one million, nine hundred eighty thousand, eight hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1327 2654 6635 13270 17251 34502 86255 172510 828833 1657666 4144165 8288330 10774829 21549658 53874145 107748290 1099861391 2199722782 5499306955 10998613910 14298198083 28596396166 71490990415 142981980830