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1312000418 = 2656000209
BaseRepresentation
bin100111000110011…
…1000100110100010
310101102202112020002
41032030320212202
510141333003133
6334104420002
744340551051
oct11614704642
93342675202
101312000418
11613654373
12307477602
1317ba7a211
14c6366398
157a2b0ce8
hex4e3389a2

1312000418 has 4 divisors (see below), whose sum is σ = 1968000630. Its totient is φ = 656000208.

The previous prime is 1312000373. The next prime is 1312000447. The reversal of 1312000418 is 8140002131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 902221369 + 409779049 = 30037^2 + 20243^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1312000418.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328000103 + ... + 328000106.

Almost surely, 21312000418 is an apocalyptic number.

1312000418 is a deficient number, since it is larger than the sum of its proper divisors (656000212).

1312000418 is an equidigital number, since it uses as much as digits as its factorization.

1312000418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656000211.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1312000418 is about 36221.5463225964. The cubic root of 1312000418 is about 1094.7408512202.

Adding to 1312000418 its reverse (8140002131), we get a palindrome (9452002549).

The spelling of 1312000418 in words is "one billion, three hundred twelve million, four hundred eighteen", and thus it is an aban number.

Divisors: 1 2 656000209 1312000418