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139220980488 = 2332439732
BaseRepresentation
bin1000000110101000110…
…1111001001100001000
3111022100112211120212200
42001222031321030020
54240111032333423
6143542432440200
713026011544252
oct2015215711410
9438315746780
10139220980488
1154052683267
1222b949a9060
13101893768c5
146a49da4cd2
15394c640d43
hex206a379308

139220980488 has 36 divisors (see below), whose sum is σ = 377065397085. Its totient is φ = 46405938144.

The previous prime is 139220980453. The next prime is 139220980499. The reversal of 139220980488 is 884089022931.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

139220980488 is a `hidden beast` number, since 1 + 392 + 209 + 8 + 0 + 48 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 139175255844 + 45724644 = 373062^2 + 6762^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=263838.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3144070 + ... + 3188042.

Almost surely, 2139220980488 is an apocalyptic number.

139220980488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139220980488 is an abundant number, since it is smaller than the sum of its proper divisors (237844416597).

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

139220980488 is an frugal number, since it uses more digits than its factorization.

139220980488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87958 (or 43978 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 139220980488 in words is "one hundred thirty-nine billion, two hundred twenty million, nine hundred eighty thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 43973 87946 131919 175892 263838 351784 395757 527676 791514 1055352 1583028 3166056 1933624729 3867249458 5800874187 7734498916 11601748374 15468997832 17402622561 23203496748 34805245122 46406993496 69610490244 139220980488