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137248000 = 28534289
BaseRepresentation
bin10000010111000…
…11110100000000
3100120020220212021
420023203310000
5240113414000
621341411224
73254405641
oct1013436400
9316226767
10137248000
11705224aa
1239b69b14
1322585846
14143296c8
15c0b111a
hex82e3d00

137248000 has 72 divisors (see below), whose sum is σ = 341981640. Its totient is φ = 54886400.

The previous prime is 137247997. The next prime is 137248009. The reversal of 137248000 is 842731.

It can be written as a sum of positive squares in 4 ways, for example, as 451584 + 136796416 = 672^2 + 11696^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137248009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29856 + ... + 34144.

It is an arithmetic number, because the mean of its divisors is an integer number (4749745).

Almost surely, 2137248000 is an apocalyptic number.

137248000 is a gapful number since it is divisible by the number (10) 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 137248000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170990820).

137248000 is an abundant number, since it is smaller than the sum of its proper divisors (204733640).

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

137248000 is an frugal number, since it uses more digits than its factorization.

137248000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320 (or 4296 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 137248000 is about 11715.2891556291. The cubic root of 137248000 is about 515.8245502498.

The spelling of 137248000 in words is "one hundred thirty-seven million, two hundred forty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 640 800 1000 1280 1600 2000 3200 4000 4289 6400 8000 8578 16000 17156 21445 32000 34312 42890 68624 85780 107225 137248 171560 214450 274496 343120 428900 536125 548992 686240 857800 1072250 1097984 1372480 1715600 2144500 2744960 3431200 4289000 5489920 6862400 8578000 13724800 17156000 27449600 34312000 68624000 137248000