Search a number
-
+
131001054 = 23235317911
BaseRepresentation
bin1111100111011…
…10101011011110
3100010111112122220
413303232223132
5232014013204
620555450210
73150330162
oct763565336
9303445586
10131001054
1167a46038
1237a56966
13211a9322
1413580ca2
15b77a1d9
hex7ceeade

131001054 has 32 divisors (see below), whose sum is σ = 278567424. Its totient is φ = 40978080.

The previous prime is 131001049. The next prime is 131001061. The reversal of 131001054 is 450100131.

It is a super-2 number, since 2×1310010542 = 34322552298221832, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1642 + ... + 16269.

It is an arithmetic number, because the mean of its divisors is an integer number (8705232).

Almost surely, 2131001054 is an apocalyptic number.

131001054 is an abundant number, since it is smaller than the sum of its proper divisors (147566370).

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

131001054 is a wasteful number, since it uses less digits than its factorization.

131001054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17992.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 131001054 is about 11445.5691863708. The cubic root of 131001054 is about 507.8766698976.

Adding to 131001054 its reverse (450100131), we get a palindrome (581101185).

The spelling of 131001054 in words is "one hundred thirty-one million, one thousand, fifty-four".

Divisors: 1 2 3 6 23 46 53 69 106 138 159 318 1219 2438 3657 7314 17911 35822 53733 107466 411953 823906 949283 1235859 1898566 2471718 2847849 5695698 21833509 43667018 65500527 131001054