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131542052055450 = 23521316694252013
BaseRepresentation
bin11101111010001100000101…
…010010010010100110011010
3122020202022000210000011212120
4131322030011102102212122
5114220141110311233300
61143433330125122110
736464412451001001
oct3572140522224632
9566668023004776
10131542052055450
1138a05742100253
12129058930b9336
135852492c2322a
14246a952761c38
151031a9d6713a0
hex77a30549299a

131542052055450 has 48 divisors (see below), whose sum is σ = 328714550895456. Its totient is φ = 34810110462400.

The previous prime is 131542052055431. The next prime is 131542052055457. The reversal of 131542052055450 is 54550250245131.

It is a happy number.

It is a super-2 number, since 2×1315420520554502 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131542052055457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3347106357 + ... + 3347145656.

It is an arithmetic number, because the mean of its divisors is an integer number (6848219810322).

Almost surely, 2131542052055450 is an apocalyptic number.

131542052055450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131542052055450 is an abundant number, since it is smaller than the sum of its proper divisors (197172498840006).

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

131542052055450 is a wasteful number, since it uses less digits than its factorization.

131542052055450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694252159 (or 6694252154 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 131542052055450 in words is "one hundred thirty-one trillion, five hundred forty-two billion, fifty-two million, fifty-five thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 131 150 262 393 655 786 1310 1965 3275 3930 6550 9825 19650 6694252013 13388504026 20082756039 33471260065 40165512078 66942520130 100413780195 167356300325 200827560390 334712600650 502068900975 876947013703 1004137801950 1753894027406 2630841041109 4384735068515 5261682082218 8769470137030 13154205205545 21923675342575 26308410411090 43847350685150 65771026027725 131542052055450