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545608680 = 233531146669
BaseRepresentation
bin100000100001010…
…101001111101000
31102000122210101220
4200201111033220
52104133434210
6130050142040
716343411601
oct4041251750
91360583356
10545608680
1125aa88971
12132881920
1389063796
1452668da8
1532d76c70
hex208553e8

545608680 has 64 divisors (see below), whose sum is σ = 1689638400. Its totient is φ = 140801280.

The previous prime is 545608669. The next prime is 545608699. The reversal of 545608680 is 86806545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69615 + ... + 77054.

It is an arithmetic number, because the mean of its divisors is an integer number (26400600).

Almost surely, 2545608680 is an apocalyptic number.

It is an amenable number.

545608680 is an abundant number, since it is smaller than the sum of its proper divisors (1144029720).

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

545608680 is a wasteful number, since it uses less digits than its factorization.

545608680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146714 (or 146710 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 545608680 is about 23358.2679152372. The cubic root of 545608680 is about 817.1348948061.

The spelling of 545608680 in words is "five hundred forty-five million, six hundred eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 60 62 93 120 124 155 186 248 310 372 465 620 744 930 1240 1860 3720 146669 293338 440007 586676 733345 880014 1173352 1466690 1760028 2200035 2933380 3520056 4400070 4546739 5866760 8800140 9093478 13640217 17600280 18186956 22733695 27280434 36373912 45467390 54560868 68201085 90934780 109121736 136402170 181869560 272804340 545608680