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14919147830 = 258597173539
BaseRepresentation
bin11011110010100000…
…00010000100110110
31102111202000020100202
431321100002010312
5221023300212310
610504225040502
71035465443546
oct157120020466
942452006322
1014919147830
116366519644
122a84486132
131539b7ab32
14a175b9326
155c4b933a5
hex379402136

14919147830 has 16 divisors (see below), whose sum is σ = 26857744560. Its totient is φ = 5966930592.

The previous prime is 14919147821. The next prime is 14919147851. The reversal of 14919147830 is 3874191941.

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, 800 + ... + 172739.

It is an arithmetic number, because the mean of its divisors is an integer number (1678609035).

Almost surely, 214919147830 is an apocalyptic number.

14919147830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14919147830 is a deficient number, since it is larger than the sum of its proper divisors (11938596730).

14919147830 is a wasteful number, since it uses less digits than its factorization.

14919147830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182143.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 14919147830 in words is "fourteen billion, nine hundred nineteen million, one hundred forty-seven thousand, eight hundred thirty".

Divisors: 1 2 5 10 8597 17194 42985 85970 173539 347078 867695 1735390 1491914783 2983829566 7459573915 14919147830