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137438202 = 231123372447
BaseRepresentation
bin10000011000100…
…10001111111010
3100120121120202210
420030102033322
5240141010302
621345435550
73256130316
oct1014221772
9316546683
10137438202
11706423a0
123a03bbb6
13226212a5
1414378b46
15c0ec66c
hex83123fa

137438202 has 64 divisors (see below), whose sum is σ = 321490944. Its totient is φ = 38744640.

The previous prime is 137438201. The next prime is 137438207. The reversal of 137438202 is 202834731.

137438202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 137438202.

It is not an unprimeable number, because it can be changed into a prime (137438201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54943 + ... + 57389.

It is an arithmetic number, because the mean of its divisors is an integer number (5023296).

Almost surely, 2137438202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137438202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160745472).

137438202 is an abundant number, since it is smaller than the sum of its proper divisors (184052742).

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

137438202 is a wasteful number, since it uses less digits than its factorization.

137438202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 137438202 is about 11723.4040278411. The cubic root of 137438202 is about 516.0627214785.

It can be divided in two parts, 13743 and 8202, that added together give a triangular number (21945 = T209).

The spelling of 137438202 in words is "one hundred thirty-seven million, four hundred thirty-eight thousand, two hundred two".

Divisors: 1 2 3 6 11 22 23 33 37 46 66 69 74 111 138 222 253 407 506 759 814 851 1221 1518 1702 2442 2447 2553 4894 5106 7341 9361 14682 18722 26917 28083 53834 56166 56281 80751 90539 112562 161502 168843 181078 271617 337686 543234 619091 995929 1238182 1857273 1991858 2082397 2987787 3714546 4164794 5975574 6247191 12494382 22906367 45812734 68719101 137438202