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137215296 = 263617173
BaseRepresentation
bin10000010110110…
…11110101000000
3100120012021000000
420023123311000
5240111342141
621341000000
73254211411
oct1013336500
9316167000
10137215296
11704aa979
1239b53000
13225739aa
141431b808
15c0a65b6
hex82dbd40

137215296 has 196 divisors, whose sum is σ = 434756052. Its totient is φ = 42799104.

The previous prime is 137215289. The next prime is 137215301. The reversal of 137215296 is 692512731.

It can be written as a sum of positive squares in 2 ways, for example, as 116640000 + 20575296 = 10800^2 + 4536^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 137215296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 793066 + ... + 793238.

Almost surely, 2137215296 is an apocalyptic number.

137215296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137215296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217378026).

137215296 is an abundant number, since it is smaller than the sum of its proper divisors (297540756).

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

137215296 is an equidigital number, since it uses as much as digits as its factorization.

137215296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 195 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 137215296 is about 11713.8932895942. The cubic root of 137215296 is about 515.7835760858.

The spelling of 137215296 in words is "one hundred thirty-seven million, two hundred fifteen thousand, two hundred ninety-six".