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131420342111420 = 22514644944868979
BaseRepresentation
bin11101111000011010101110…
…110011101100110010111100
3122020022122212121021102010202
4131320122232303230302330
5114211142330040031140
61143301401030423032
736452543406356015
oct3570325663546274
9566278777242122
10131420342111420
113896906600094a
12128a6186801a78
135843b676ba37b
142464ac82a600c
15102d828500915
hex7786aececcbc

131420342111420 has 24 divisors (see below), whose sum is σ = 275984609082000. Its totient is φ = 52567776721152.

The previous prime is 131420342111369. The next prime is 131420342111503. The reversal of 131420342111420 is 24111243024131.

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, 19505510 + ... + 25363469.

It is an arithmetic number, because the mean of its divisors is an integer number (11499358711750).

Almost surely, 2131420342111420 is an apocalyptic number.

131420342111420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131420342111420 is an abundant number, since it is smaller than the sum of its proper divisors (144564266970580).

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

131420342111420 is a wasteful number, since it uses less digits than its factorization.

131420342111420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45015437 (or 45015435 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 131420342111420 its reverse (24111243024131), we get a palindrome (155531585135551).

The spelling of 131420342111420 in words is "one hundred thirty-one trillion, four hundred twenty billion, three hundred forty-two million, one hundred eleven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 146449 292898 585796 732245 1464490 2928980 44868979 89737958 179475916 224344895 448689790 897379580 6571017105571 13142034211142 26284068422284 32855085527855 65710171055710 131420342111420