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131004414 = 232172112029
BaseRepresentation
bin1111100111011…
…11011111111110
3100010111201021100
413303233133332
5232014120124
620555513530
73150343032
oct763573776
9303451240
10131004414
1167a48612
1237a588a6
13211aaa08
14135821c2
15b77b1c9
hex7cef7fe

131004414 has 48 divisors (see below), whose sum is σ = 302112720. Its totient is φ = 40884480.

The previous prime is 131004337. The next prime is 131004421. The reversal of 131004414 is 414400131.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 63552 + ... + 65580.

It is an arithmetic number, because the mean of its divisors is an integer number (6294015).

Almost surely, 2131004414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131004414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151056360).

131004414 is an abundant number, since it is smaller than the sum of its proper divisors (171108306).

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

131004414 is a wasteful number, since it uses less digits than its factorization.

131004414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2262 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 131004414 is about 11445.7159671206. The cubic root of 131004414 is about 507.8810119772.

Adding to 131004414 its reverse (414400131), we get a palindrome (545404545).

The spelling of 131004414 in words is "one hundred thirty-one million, four thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 211 306 422 633 1266 1899 2029 3587 3798 4058 6087 7174 10761 12174 18261 21522 32283 34493 36522 64566 68986 103479 206958 310437 428119 620874 856238 1284357 2568714 3853071 7278023 7706142 14556046 21834069 43668138 65502207 131004414