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2078812260 = 2232572317603
BaseRepresentation
bin111101111101000…
…0010100001100100
312100212122121022200
41323322002201210
513224133443020
6542140054500
7102341420100
oct17372024144
95325577280
102078812260
11977487468
124a0234430
132718acc35
1415a132900
15c277e590
hex7be82864

2078812260 has 216 divisors, whose sum is σ = 7572854016. Its totient is φ = 459768960.

The previous prime is 2078812259. The next prime is 2078812261. The reversal of 2078812260 is 622188702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2078812259) and next prime (2078812261).

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

It is not an unprimeable number, because it can be changed into a prime (2078812261) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 269619 + ... + 277221.

Almost surely, 22078812260 is an apocalyptic number.

2078812260 is a gapful number since it is divisible by the number (20) 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 2078812260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3786427008).

2078812260 is an abundant number, since it is smaller than the sum of its proper divisors (5494041756).

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

2078812260 is a wasteful number, since it uses less digits than its factorization.

2078812260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7663 (or 7651 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2078812260 is about 45593.9936833790. The cubic root of 2078812260 is about 1276.2578405714.

The spelling of 2078812260 in words is "two billion, seventy-eight million, eight hundred twelve thousand, two hundred sixty".