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3140880 = 243523569
BaseRepresentation
bin1011111110110100010000
312220120110220
423332310100
51301002010
6151153040
735461041
oct13766420
95816426
103140880
111855876
121075780
1385c812
145ba8c8
15420970
hex2fed10

3140880 has 80 divisors (see below), whose sum is σ = 10177920. Its totient is φ = 799744.

The previous prime is 3140873. The next prime is 3140881. The reversal of 3140880 is 880413.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3140880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5236 + ... + 5804.

It is an arithmetic number, because the mean of its divisors is an integer number (127224).

Almost surely, 23140880 is an apocalyptic number.

3140880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3140880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5088960).

3140880 is an abundant number, since it is smaller than the sum of its proper divisors (7037040).

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

3140880 is a wasteful number, since it uses less digits than its factorization.

3140880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 3140880 is about 1772.2528036372. The cubic root of 3140880 is about 146.4481134226.

The spelling of 3140880 in words is "three million, one hundred forty thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 40 46 48 60 69 80 92 115 120 138 184 230 240 276 345 368 460 552 569 690 920 1104 1138 1380 1707 1840 2276 2760 2845 3414 4552 5520 5690 6828 8535 9104 11380 13087 13656 17070 22760 26174 27312 34140 39261 45520 52348 65435 68280 78522 104696 130870 136560 157044 196305 209392 261740 314088 392610 523480 628176 785220 1046960 1570440 3140880