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1012608018 = 23256256001
BaseRepresentation
bin111100010110110…
…010110000010010
32121120101211001200
4330112302300102
54033211424033
6244251412030
734044011652
oct7426626022
92546354050
101012608018
1147a655434
12243154016
13131a32b56
14986b0362
155dd72013
hex3c5b2c12

1012608018 has 12 divisors (see below), whose sum is σ = 2193984078. Its totient is φ = 337536000.

The previous prime is 1012607987. The next prime is 1012608049. The reversal of 1012608018 is 8108062101.

It is an interprime number because it is at equal distance from previous prime (1012607987) and next prime (1012608049).

It can be written as a sum of positive squares in only one way, i.e., 616876569 + 395731449 = 24837^2 + 19893^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1012607982 and 1012608000.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28127983 + ... + 28128018.

Almost surely, 21012608018 is an apocalyptic number.

1012608018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1012608018 is an abundant number, since it is smaller than the sum of its proper divisors (1181376060).

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

1012608018 is a wasteful number, since it uses less digits than its factorization.

1012608018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56256009 (or 56256006 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 1012608018 is about 31821.5024472447. The cubic root of 1012608018 is about 1004.1851328946.

It can be divided in two parts, 101260 and 8018, that added together give a triangular number (109278 = T467).

The spelling of 1012608018 in words is "one billion, twelve million, six hundred eight thousand, eighteen".

Divisors: 1 2 3 6 9 18 56256001 112512002 168768003 337536006 506304009 1012608018