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3807980 = 2251119911
BaseRepresentation
bin1110100001101011101100
321011110120022
432201223230
51433323410
6213341312
744236661
oct16415354
97143508
103807980
112170aa0
121337838
13a34357
14711a68
15503455
hex3a1aec

3807980 has 48 divisors (see below), whose sum is σ = 9192960. Its totient is φ = 1310400.

The previous prime is 3807959. The next prime is 3808001. The reversal of 3807980 is 897083.

It is an interprime number because it is at equal distance from previous prime (3807959) and next prime (3808001).

It is a self number, because there is not a number n which added to its sum of digits gives 3807980.

It is a congruent number.

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, 3725 + ... + 4635.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

Almost surely, 23807980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3807980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4596480).

3807980 is an abundant number, since it is smaller than the sum of its proper divisors (5384980).

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

3807980 is a wasteful number, since it uses less digits than its factorization.

3807980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 3807980 is about 1951.4046223170. The cubic root of 3807980 is about 156.1582330484.

The spelling of 3807980 in words is "three million, eight hundred seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 380 418 836 911 1045 1822 2090 3644 4180 4555 9110 10021 17309 18220 20042 34618 40084 50105 69236 86545 100210 173090 190399 200420 346180 380798 761596 951995 1903990 3807980