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131201052 = 22331352691
BaseRepresentation
bin1111101000111…
…11100000011100
3100010212201000020
413310133200130
5232041413202
621004032140
73152122233
oct764374034
9303781006
10131201052
1168072324
1237b32650
1321249378
14135d3b1a
15b7b95bc
hex7d1f81c

131201052 has 24 divisors (see below), whose sum is σ = 316012032. Its totient is φ = 42322800.

The previous prime is 131201029. The next prime is 131201101. The reversal of 131201052 is 250102131.

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, 175974 + ... + 176717.

It is an arithmetic number, because the mean of its divisors is an integer number (13167168).

Almost surely, 2131201052 is an apocalyptic number.

131201052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131201052 is an abundant number, since it is smaller than the sum of its proper divisors (184810980).

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

131201052 is a wasteful number, since it uses less digits than its factorization.

131201052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352729 (or 352727 counting only the distinct ones).

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

The square root of 131201052 is about 11454.3027723210. The cubic root of 131201052 is about 508.1349952268.

Adding to 131201052 its reverse (250102131), we get a palindrome (381303183).

The spelling of 131201052 in words is "one hundred thirty-one million, two hundred one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 352691 705382 1058073 1410764 2116146 4232292 10933421 21866842 32800263 43733684 65600526 131201052