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61294680 = 23325170263
BaseRepresentation
bin1110100111010…
…0100001011000
311021100002111100
43221310201120
5111142412210
610025431400
71342665456
oct351644130
9137302440
1061294680
1131665667
121863b560
13c911355
1481d79d6
1555ab5c0
hex3a74858

61294680 has 48 divisors (see below), whose sum is σ = 199208880. Its totient is φ = 16345152.

The previous prime is 61294663. The next prime is 61294693. The reversal of 61294680 is 8649216.

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 a Harshad number since it is a multiple of its sum of digits (36).

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, 84772 + ... + 85491.

It is an arithmetic number, because the mean of its divisors is an integer number (4150185).

Almost surely, 261294680 is an apocalyptic number.

61294680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61294680 is an abundant number, since it is smaller than the sum of its proper divisors (137914200).

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

61294680 is a wasteful number, since it uses less digits than its factorization.

61294680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170280 (or 170273 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 61294680 is about 7829.0919013638. The cubic root of 61294680 is about 394.2825839161.

The spelling of 61294680 in words is "sixty-one million, two hundred ninety-four thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 170263 340526 510789 681052 851315 1021578 1362104 1532367 1702630 2043156 2553945 3064734 3405260 4086312 5107890 6129468 6810520 7661835 10215780 12258936 15323670 20431560 30647340 61294680