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121131294 = 23231515813
BaseRepresentation
bin1110011100001…
…01000100011110
322102221002220020
413032011010132
5222002200134
620004133010
73000412314
oct716050436
9272832806
10121131294
1162414809
1234697166
131c131b2b
14121320b4
15a97ab49
hex738511e

121131294 has 32 divisors (see below), whose sum is σ = 254513664. Its totient is φ = 38359200.

The previous prime is 121131293. The next prime is 121131323. The reversal of 121131294 is 492131121.

It is a super-2 number, since 2×1211312942 = 29345580772228872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121131293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17932 + ... + 23744.

It is an arithmetic number, because the mean of its divisors is an integer number (7953552).

Almost surely, 2121131294 is an apocalyptic number.

121131294 is an abundant number, since it is smaller than the sum of its proper divisors (133382370).

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

121131294 is a wasteful number, since it uses less digits than its factorization.

121131294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992.

The product of its digits is 432, while the sum is 24.

The square root of 121131294 is about 11005.9662910623. The cubic root of 121131294 is about 494.7875754177.

The spelling of 121131294 in words is "one hundred twenty-one million, one hundred thirty-one thousand, two hundred ninety-four".

Divisors: 1 2 3 6 23 46 69 138 151 302 453 906 3473 5813 6946 10419 11626 17439 20838 34878 133699 267398 401097 802194 877763 1755526 2633289 5266578 20188549 40377098 60565647 121131294