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131142123254 = 2271823329389
BaseRepresentation
bin111101000100010101…
…1011111111011110110
3110112111112001010012002
41322020223133323312
54122034340421004
6140125034455302
712321552440522
oct1721053377366
9415445033162
10131142123254
115068734524a
12214bb294532
13c49c6b35cc
1464c1050d82
15362826a61e
hex1e88adfef6

131142123254 has 16 divisors (see below), whose sum is σ = 197469764160. Its totient is φ = 65318944320.

The previous prime is 131142123239. The next prime is 131142123269. The reversal of 131142123254 is 452321241131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131142123239) and next prime (131142123269).

It is a Curzon number.

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, 4447592 + ... + 4476980.

It is an arithmetic number, because the mean of its divisors is an integer number (12341860260).

Almost surely, 2131142123254 is an apocalyptic number.

131142123254 is a deficient number, since it is larger than the sum of its proper divisors (66327640906).

131142123254 is a wasteful number, since it uses less digits than its factorization.

131142123254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37895.

The product of its digits is 5760, while the sum is 29.

Adding to 131142123254 its reverse (452321241131), we get a palindrome (583463364385).

The spelling of 131142123254 in words is "one hundred thirty-one billion, one hundred forty-two million, one hundred twenty-three thousand, two hundred fifty-four".

Divisors: 1 2 271 542 8233 16466 29389 58778 2231143 4462286 7964419 15928838 241959637 483919274 65571061627 131142123254