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137103940 = 2256855197
BaseRepresentation
bin10000010110000…
…00101001000100
3100112222121020201
420023000221010
5240044311230
621334340244
73253235641
oct1013005104
9315877221
10137103940
1170434246
1239aba684
13225350bc
14142ccdc8
15c0835ca
hex82c0a44

137103940 has 12 divisors (see below), whose sum is σ = 287918316. Its totient is φ = 54841568.

The previous prime is 137103937. The next prime is 137103949. The reversal of 137103940 is 49301731.

It can be written as a sum of positive squares in 2 ways, for example, as 103184964 + 33918976 = 10158^2 + 5824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 137103899 and 137103908.

It is not an unprimeable number, because it can be changed into a prime (137103949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3427579 + ... + 3427618.

It is an arithmetic number, because the mean of its divisors is an integer number (23993193).

Almost surely, 2137103940 is an apocalyptic number.

137103940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137103940 is an abundant number, since it is smaller than the sum of its proper divisors (150814376).

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

137103940 is a wasteful number, since it uses less digits than its factorization.

137103940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855206 (or 6855204 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 137103940 is about 11709.1391656261. The cubic root of 137103940 is about 515.6440116161.

The spelling of 137103940 in words is "one hundred thirty-seven million, one hundred three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 6855197 13710394 27420788 34275985 68551970 137103940