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14972780 = 225748639
BaseRepresentation
bin111001000111…
…011101101100
31001011200210102
4321013131230
512313112110
61252530232
7241160264
oct71073554
931150712
1014972780
1184a72a9
125020978
133143144
141dba7a4
1514ab5a5
hexe4776c

14972780 has 12 divisors (see below), whose sum is σ = 31442880. Its totient is φ = 5989104.

The previous prime is 14972777. The next prime is 14972807. The reversal of 14972780 is 8727941.

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, 374300 + ... + 374339.

It is an arithmetic number, because the mean of its divisors is an integer number (2620240).

Almost surely, 214972780 is an apocalyptic number.

14972780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14972780 is an abundant number, since it is smaller than the sum of its proper divisors (16470100).

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

14972780 is a wasteful number, since it uses less digits than its factorization.

14972780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748648 (or 748646 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 14972780 is about 3869.4676636457. The cubic root of 14972780 is about 246.4719386775.

The spelling of 14972780 in words is "fourteen million, nine hundred seventy-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 748639 1497278 2994556 3743195 7486390 14972780