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103513990 = 2510351399
BaseRepresentation
bin1100010101101…
…11111110000110
321012210001111111
412022313332012
5202444421430
614134355234
72364566026
oct612677606
9235701444
10103513990
1153481658
122a7bbb1a
13185a40a8
14da67a86
15914ac2a
hex62b7f86

103513990 has 8 divisors (see below), whose sum is σ = 186325200. Its totient is φ = 41405592.

The previous prime is 103513987. The next prime is 103513999. The reversal of 103513990 is 99315301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1035139902 = 21430292251440200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103513999) 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, 5175690 + ... + 5175709.

It is an arithmetic number, because the mean of its divisors is an integer number (23290650).

Almost surely, 2103513990 is an apocalyptic number.

103513990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103513990 is a deficient number, since it is larger than the sum of its proper divisors (82811210).

103513990 is a wasteful number, since it uses less digits than its factorization.

103513990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10351406.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 103513990 is about 10174.1825224438. The cubic root of 103513990 is about 469.5332472034.

It can be divided in two parts, 10351 and 3990, that added together give a palindrome (14341).

The spelling of 103513990 in words is "one hundred three million, five hundred thirteen thousand, nine hundred ninety".

Divisors: 1 2 5 10 10351399 20702798 51756995 103513990