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1250991280130 = 25125099128013
BaseRepresentation
bin10010001101000100111…
…001000001000000000010
311102121000201210112022012
4102031010321001000002
5130444012231431010
62354410352412522
7156244505301224
oct22150471010002
94377021715265
101250991280130
114425a6a67619
1218254a547142
1390c77830907
1444796776414
152281b5dd005
hex12344e41002

1250991280130 has 8 divisors (see below), whose sum is σ = 2251784304252. Its totient is φ = 500396512048.

The previous prime is 1250991280117. The next prime is 1250991280151. The reversal of 1250991280130 is 310821990521.

It can be written as a sum of positive squares in 2 ways, for example, as 1189140087529 + 61851192601 = 1090477^2 + 248699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12509912801302 (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62549563997 + ... + 62549564016.

Almost surely, 21250991280130 is an apocalyptic number.

1250991280130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250991280130 is a deficient number, since it is larger than the sum of its proper divisors (1000793024122).

1250991280130 is a wasteful number, since it uses less digits than its factorization.

1250991280130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125099128020.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 1250991280130 in words is "one trillion, two hundred fifty billion, nine hundred ninety-one million, two hundred eighty thousand, one hundred thirty".

Divisors: 1 2 5 10 125099128013 250198256026 625495640065 1250991280130