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127725268019830 = 25131791816294983
BaseRepresentation
bin11101000010101001011011…
…001110101010101001110110
3121202020102020112110210221221
4131002221123032222221312
5113220122322103113310
61131352102245100554
735621563131665245
oct3502513316525166
9552212215423857
10127725268019830
1137773a89008468
12123aa0199b775a
13563659710a150
142377d163a095c
15eb76623c2ada
hex742a5b3aaa76

127725268019830 has 64 divisors (see below), whose sum is σ = 262183263447168. Its totient is φ = 44381133895680.

The previous prime is 127725268019683. The next prime is 127725268019857. The reversal of 127725268019830 is 38910862527721.

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 31 ways as a sum of consecutive naturals, for example, 17142519 + ... + 23437501.

It is an arithmetic number, because the mean of its divisors is an integer number (4096613491362).

Almost surely, 2127725268019830 is an apocalyptic number.

127725268019830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127725268019830 is an abundant number, since it is smaller than the sum of its proper divisors (134457995427338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127725268019830 is a wasteful number, since it uses less digits than its factorization.

127725268019830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304201.

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 127725268019830 in words is "one hundred twenty-seven trillion, seven hundred twenty-five billion, two hundred sixty-eight million, nineteen thousand, eight hundred thirty".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 9181 18362 45905 91810 119353 156077 238706 312154 596765 780385 1193530 1560770 2029001 4058002 6294983 10145005 12589966 20290010 31474915 62949830 81834779 107014711 163669558 214029422 409173895 535073555 818347790 1070147110 1391191243 2782382486 6955956215 13911912430 57794238923 115588477846 288971194615 577942389230 751325105999 982502061691 1502650211998 1965004123382 3756625529995 4912510308455 7513251059990 9825020616910 12772526801983 25545053603966 63862634009915 127725268019830