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5142780 = 2232528571
BaseRepresentation
bin10011100111100011111100
3100200021120100
4103213203330
52304032110
6302121100
761466346
oct23474374
910607510
105142780
1129a2935
121880190
1310b0a86
1497c296
156b8bc0
hex4e78fc

5142780 has 36 divisors (see below), whose sum is σ = 15600312. Its totient is φ = 1371360.

The previous prime is 5142779. The next prime is 5142793. The reversal of 5142780 is 872415.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×51427802 = 52896372256800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14106 + ... + 14465.

It is an arithmetic number, because the mean of its divisors is an integer number (433342).

Almost surely, 25142780 is an apocalyptic number.

It is an amenable number.

5142780 is an abundant number, since it is smaller than the sum of its proper divisors (10457532).

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

5142780 is a wasteful number, since it uses less digits than its factorization.

5142780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28586 (or 28581 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 5142780 is about 2267.7698295903. The cubic root of 5142780 is about 172.6100117407.

The spelling of 5142780 in words is "five million, one hundred forty-two thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 28571 57142 85713 114284 142855 171426 257139 285710 342852 428565 514278 571420 857130 1028556 1285695 1714260 2571390 5142780