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14639480 = 2351392633
BaseRepresentation
bin110111110110…
…000101111000
31000112202120222
4313312011320
512221430410
61241435212
7235301462
oct67660570
930482528
1014639480
118299949
124a9bb08
13305751b
141d31132
151442955
hexdf6178

14639480 has 32 divisors (see below), whose sum is σ = 33188400. Its totient is φ = 5811456.

The previous prime is 14639473. The next prime is 14639483. The reversal of 14639480 is 8493641.

It is a self number, because there is not a number n which added to its sum of digits gives 14639480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14639483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4244 + ... + 6876.

Almost surely, 214639480 is an apocalyptic number.

14639480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14639480 is an abundant number, since it is smaller than the sum of its proper divisors (18548920).

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

14639480 is a wasteful number, since it uses less digits than its factorization.

14639480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783 (or 2779 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 14639480 is about 3826.1573412498. The cubic root of 14639480 is about 244.6293437299.

The spelling of 14639480 in words is "fourteen million, six hundred thirty-nine thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 139 278 556 695 1112 1390 2633 2780 5266 5560 10532 13165 21064 26330 52660 105320 365987 731974 1463948 1829935 2927896 3659870 7319740 14639480