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14025978 = 232779221
BaseRepresentation
bin110101100000…
…010011111010
3222101121000200
4311200103322
512042312403
61220343030
7230135031
oct65402372
928347020
1014025978
117a0aa1a
124844a76
132ba11c5
141c11718
151370ca3
hexd604fa

14025978 has 12 divisors (see below), whose sum is σ = 30389658. Its totient is φ = 4675320.

The previous prime is 14025967. The next prime is 14025989. The reversal of 14025978 is 87952041.

14025978 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (14025967) and next prime (14025989).

It can be written as a sum of positive squares in only one way, i.e., 11675889 + 2350089 = 3417^2 + 1533^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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, 389593 + ... + 389628.

Almost surely, 214025978 is an apocalyptic number.

14025978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14025978 is an abundant number, since it is smaller than the sum of its proper divisors (16363680).

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

14025978 is a wasteful number, since it uses less digits than its factorization.

14025978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779229 (or 779226 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 14025978 is about 3745.1272341537. The cubic root of 14025978 is about 241.1632073447.

The spelling of 14025978 in words is "fourteen million, twenty-five thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 9 18 779221 1558442 2337663 4675326 7012989 14025978