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137013248 = 211149449
BaseRepresentation
bin10000010101010…
…10100000000000
3100112210222211202
420022222200000
5240033410443
621332400332
73252410351
oct1012524000
9315728752
10137013248
1170382099
1239a760a8
1322502a38
14142a7d28
15c0667b8
hex82aa800

137013248 has 48 divisors (see below), whose sum is σ = 276412500. Its totient is φ = 67895296.

The previous prime is 137013229. The next prime is 137013287. The reversal of 137013248 is 842310731.

It can be written as a sum of positive squares in 2 ways, for example, as 133448704 + 3564544 = 11552^2 + 1888^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 137013248.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304928 + ... + 305376.

Almost surely, 2137013248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137013248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138206250).

137013248 is an abundant number, since it is smaller than the sum of its proper divisors (139399252).

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

137013248 is an equidigital number, since it uses as much as digits as its factorization.

137013248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 137013248 is about 11705.2658235514. The cubic root of 137013248 is about 515.5302898615.

Adding to 137013248 its reverse (842310731), we get a palindrome (979323979).

The spelling of 137013248 in words is "one hundred thirty-seven million, thirteen thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 32 64 128 149 256 298 449 512 596 898 1024 1192 1796 2048 2384 3592 4768 7184 9536 14368 19072 28736 38144 57472 66901 76288 114944 133802 152576 229888 267604 305152 459776 535208 919552 1070416 2140832 4281664 8563328 17126656 34253312 68506624 137013248