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13891750030 = 257331895191
BaseRepresentation
bin11001111000000001…
…10100100010001110
31022212010210000112101
430330000310202032
5211422242000110
610214244225314
71001151632644
oct147400644216
938763700471
1013891750030
115989592454
12283839b23a
13140506a242
1495ad79194
1556489e13a
hex33c03488e

13891750030 has 16 divisors (see below), whose sum is σ = 25039276704. Its totient is φ = 5549116320.

The previous prime is 13891749961. The next prime is 13891750043. The reversal of 13891750030 is 3005719831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940266 + ... + 954925.

It is an arithmetic number, because the mean of its divisors is an integer number (1564954794).

Almost surely, 213891750030 is an apocalyptic number.

13891750030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13891750030 is a deficient number, since it is larger than the sum of its proper divisors (11147526674).

13891750030 is a wasteful number, since it uses less digits than its factorization.

13891750030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895931.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 13891750030 in words is "thirteen billion, eight hundred ninety-one million, seven hundred fifty thousand, thirty".

Divisors: 1 2 5 10 733 1466 3665 7330 1895191 3790382 9475955 18951910 1389175003 2778350006 6945875015 13891750030