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12495380402 = 212301507901
BaseRepresentation
bin10111010001100100…
…00101111110110010
31012020211021002111202
423220302011332302
5201042304133102
65423523211202
7621434660321
oct135062057662
935224232452
1012495380402
11533235326a
122508816b02
13124199001b
148677300b8
154d1ec4e02
hex2e8c85fb2

12495380402 has 8 divisors (see below), whose sum is σ = 18744631212. Its totient is φ = 6247170000.

The previous prime is 12495380399. The next prime is 12495380411. The reversal of 12495380402 is 20408359421.

It can be written as a sum of positive squares in 2 ways, for example, as 12367441681 + 127938721 = 111209^2 + 11311^2 .

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

It is a super-2 number, since 2×124953804022 (a number of 21 digits) contains 22 as substring.

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, 229349 + ... + 278552.

Almost surely, 212495380402 is an apocalyptic number.

12495380402 is a deficient number, since it is larger than the sum of its proper divisors (6249250810).

12495380402 is a wasteful number, since it uses less digits than its factorization.

12495380402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520204.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 12495380402 in words is "twelve billion, four hundred ninety-five million, three hundred eighty thousand, four hundred two".

Divisors: 1 2 12301 24602 507901 1015802 6247690201 12495380402