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137144450 = 2522742889
BaseRepresentation
bin10000010110010…
…10100010000010
3100120001122211002
420023022202002
5240102110300
621335252002
73253465022
oct1013124202
9316048732
10137144450
1170461723
1239b1a002
132254a681
14142dda82
15c0905d5
hex82ca882

137144450 has 12 divisors (see below), whose sum is σ = 255088770. Its totient is φ = 54857760.

The previous prime is 137144437. The next prime is 137144453. The reversal of 137144450 is 54441731.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 128210329 + 8934121 = 11323^2 + 2989^2 .

It is not an unprimeable number, because it can be changed into a prime (137144453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1371395 + ... + 1371494.

Almost surely, 2137144450 is an apocalyptic number.

137144450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137144450 is a deficient number, since it is larger than the sum of its proper divisors (117944320).

137144450 is a wasteful number, since it uses less digits than its factorization.

137144450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742901 (or 2742896 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 137144450 is about 11710.8688832213. The cubic root of 137144450 is about 515.6947922670.

The spelling of 137144450 in words is "one hundred thirty-seven million, one hundred forty-four thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 2742889 5485778 13714445 27428890 68572225 137144450