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137244884 = 2272700229
BaseRepresentation
bin10000010111000…
…11000011010100
3100120020202120212
420023203003110
5240113314014
621341344552
73254363600
oct1013430324
9316222525
10137244884
1170520127
1239b68158
13225842ba
1414328500
15c0b023e
hex82e30d4

137244884 has 18 divisors (see below), whose sum is σ = 279391770. Its totient is φ = 58819152.

The previous prime is 137244871. The next prime is 137244911. The reversal of 137244884 is 488442731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 82810000 + 54434884 = 9100^2 + 7378^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349919 + ... + 350310.

It is an arithmetic number, because the mean of its divisors is an integer number (15521765).

Almost surely, 2137244884 is an apocalyptic number.

137244884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

137244884 is an abundant number, since it is smaller than the sum of its proper divisors (142146886).

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

137244884 is a wasteful number, since it uses less digits than its factorization.

137244884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700247 (or 700238 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 137244884 is about 11715.1561662660. The cubic root of 137244884 is about 515.8206465585.

The spelling of 137244884 in words is "one hundred thirty-seven million, two hundred forty-four thousand, eight hundred eighty-four".

Divisors: 1 2 4 7 14 28 49 98 196 700229 1400458 2800916 4901603 9803206 19606412 34311221 68622442 137244884