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140431141220 = 225139449311243
BaseRepresentation
bin1000001011001001011…
…0010010100101100100
3111102110212222010022112
42002302112102211210
54300100333004340
6144302502420152
713101005001536
oct2026226224544
9442425863275
10140431141220
11546137999a7
1223272131658
131031ccb7b46
146b229bb856
1539bd9d7065
hex20b2592964

140431141220 has 48 divisors (see below), whose sum is σ = 297119551680. Its totient is φ = 55750966656.

The previous prime is 140431141219. The next prime is 140431141247. The reversal of 140431141220 is 22141134041.

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, 12484919 + ... + 12496161.

It is an arithmetic number, because the mean of its divisors is an integer number (6189990660).

Almost surely, 2140431141220 is an apocalyptic number.

140431141220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140431141220 is an abundant number, since it is smaller than the sum of its proper divisors (156688410460).

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

140431141220 is a wasteful number, since it uses less digits than its factorization.

140431141220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884 (or 15882 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 140431141220 its reverse (22141134041), we get a palindrome (162572275261).

The spelling of 140431141220 in words is "one hundred forty billion, four hundred thirty-one million, one hundred forty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 4493 8986 11243 17972 22465 22486 44930 44972 56215 89860 112430 224860 624527 1249054 1562777 2498108 3122635 3125554 6245270 6251108 7813885 12490540 15627770 31255540 50514799 101029598 202059196 252573995 505147990 1010295980 7021557061 14043114122 28086228244 35107785305 70215570610 140431141220