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11868290650 = 252259391541
BaseRepresentation
bin10110000110110011…
…11011111001011010
31010122010021122002101
423003121323321122
5143301240300100
65241402354014
7600051543316
oct130331737132
933563248071
1011868290650
115040382477
1223727bb90a
131171a9acb8
14808334b46
15496e0586a
hex2c367be5a

11868290650 has 24 divisors (see below), whose sum is σ = 22083775164. Its totient is φ = 4745433600.

The previous prime is 11868290647. The next prime is 11868290657. The reversal of 11868290650 is 5609286811.

It can be written as a sum of positive squares in 6 ways, for example, as 3618383409 + 8249907241 = 60153^2 + 90829^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11868290650.

It is not an unprimeable number, because it can be changed into a prime (11868290657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83880 + ... + 175420.

Almost surely, 211868290650 is an apocalyptic number.

11868290650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11868290650 is a deficient number, since it is larger than the sum of its proper divisors (10215484514).

11868290650 is a wasteful number, since it uses less digits than its factorization.

11868290650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94146 (or 94141 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 11868290650 in words is "eleven billion, eight hundred sixty-eight million, two hundred ninety thousand, six hundred fifty".

Divisors: 1 2 5 10 25 50 2593 5186 12965 25930 64825 91541 129650 183082 457705 915410 2288525 4577050 237365813 474731626 1186829065 2373658130 5934145325 11868290650