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2678672580 = 2235291539467
BaseRepresentation
bin1001111110101001…
…0100110011000100
320220200101122222120
42133222110303010
520441220010310
61121445125540
7123244225023
oct23752246304
96820348876
102678672580
11115504a3a1
126290b98b0
13338c5a07c
141b5a808ba
1510a270b70
hex9fa94cc4

2678672580 has 48 divisors (see below), whose sum is σ = 7758918720. Its totient is φ = 689680768.

The previous prime is 2678672569. The next prime is 2678672587. The reversal of 2678672580 is 852768762.

It is a happy number.

2678672580 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2678672587) 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, 767994 + ... + 771473.

It is an arithmetic number, because the mean of its divisors is an integer number (161644140).

Almost surely, 22678672580 is an apocalyptic number.

2678672580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2678672580 is an abundant number, since it is smaller than the sum of its proper divisors (5080246140).

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

2678672580 is a wasteful number, since it uses less digits than its factorization.

2678672580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539508 (or 1539506 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The square root of 2678672580 is about 51755.8941570909. The cubic root of 2678672580 is about 1388.8005421303.

The spelling of 2678672580 in words is "two billion, six hundred seventy-eight million, six hundred seventy-two thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 1539467 3078934 4618401 6157868 7697335 9236802 15394670 18473604 23092005 30789340 44644543 46184010 89289086 92368020 133933629 178578172 223222715 267867258 446445430 535734516 669668145 892890860 1339336290 2678672580