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13140223430 = 253493765107
BaseRepresentation
bin11000011110011011…
…11110010111000110
31020220202122111211212
430033031332113012
5203402344122210
610011520331422
7643425025205
oct141715762706
936822574755
1013140223430
11563334a394
122668773b72
131315459949
148c922b23c
1551d8ee805
hex30f37e5c6

13140223430 has 16 divisors (see below), whose sum is σ = 23720180400. Its totient is φ = 5241027552.

The previous prime is 13140223391. The next prime is 13140223451. The reversal of 13140223430 is 3432204131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13140223396 and 13140223405.

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, 1879064 + ... + 1886043.

It is an arithmetic number, because the mean of its divisors is an integer number (1482511275).

Almost surely, 213140223430 is an apocalyptic number.

13140223430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13140223430 is a deficient number, since it is larger than the sum of its proper divisors (10579956970).

13140223430 is a wasteful number, since it uses less digits than its factorization.

13140223430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765463.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13140223430 its reverse (3432204131), we get a palindrome (16572427561).

The spelling of 13140223430 in words is "thirteen billion, one hundred forty million, two hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 349 698 1745 3490 3765107 7530214 18825535 37651070 1314022343 2628044686 6570111715 13140223430