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137801500 = 22531971399
BaseRepresentation
bin10000011011010…
…10111100011100
3100121022001010021
420031222330130
5240234122000
621401321524
73262202434
oct1015527434
9317261107
10137801500
1170870341
123a1962a4
132271a765
14144312c4
15c17011a
hex836af1c

137801500 has 48 divisors (see below), whose sum is σ = 302702400. Its totient is φ = 54801600.

The previous prime is 137801483. The next prime is 137801519. The reversal of 137801500 is 5108731.

137801500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97801 + ... + 99199.

It is an arithmetic number, because the mean of its divisors is an integer number (6306300).

Almost surely, 2137801500 is an apocalyptic number.

137801500 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 137801500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151351200).

137801500 is an abundant number, since it is smaller than the sum of its proper divisors (164900900).

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

137801500 is a wasteful number, since it uses less digits than its factorization.

137801500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 137801500 is about 11738.8883630436. Note that the first 3 decimals coincide. The cubic root of 137801500 is about 516.5170337874.

The spelling of 137801500 in words is "one hundred thirty-seven million, eight hundred one thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 197 250 394 500 788 985 1399 1970 2798 3940 4925 5596 6995 9850 13990 19700 24625 27980 34975 49250 69950 98500 139900 174875 275603 349750 551206 699500 1102412 1378015 2756030 5512060 6890075 13780150 27560300 34450375 68900750 137801500