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131553190 = 25109120691
BaseRepresentation
bin1111101011101…
…01011110100110
3100011112121001101
413311311132212
5232134200230
621015350314
73155116666
oct765653646
9304477041
10131553190
116829294a
123808239a
1321340732
14136861a6
15b838aca
hex7d757a6

131553190 has 16 divisors (see below), whose sum is σ = 238970160. Its totient is φ = 52138080.

The previous prime is 131553161. The next prime is 131553221. The reversal of 131553190 is 91355131.

It is a super-2 number, since 2×1315531902 = 34612483598352200, which contains 22 as substring.

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, 59256 + ... + 61435.

It is an arithmetic number, because the mean of its divisors is an integer number (14935635).

Almost surely, 2131553190 is an apocalyptic number.

131553190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131553190 is a deficient number, since it is larger than the sum of its proper divisors (107416970).

131553190 is a wasteful number, since it uses less digits than its factorization.

131553190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120807.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 131553190 is about 11469.6639009171. The cubic root of 131553190 is about 508.5891933019.

It can be divided in two parts, 13 and 1553190, that added together give a triangular number (1553203 = T1762).

The spelling of 131553190 in words is "one hundred thirty-one million, five hundred fifty-three thousand, one hundred ninety".

Divisors: 1 2 5 10 109 218 545 1090 120691 241382 603455 1206910 13155319 26310638 65776595 131553190