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7080400872 = 2332151651251
BaseRepresentation
bin1101001100000011…
…00101011111101000
3200021110000122001100
412212001211133220
5104000040311442
63130325321400
7340313262066
oct64601453750
920243018040
107080400872
113003779a76
121457266260
1388ab7691c
144b24c9036
152b68eb84c
hex1a60657e8

7080400872 has 48 divisors (see below), whose sum is σ = 19303109280. Its totient is φ = 2344500000.

The previous prime is 7080400871. The next prime is 7080400903. The reversal of 7080400872 is 2780040807.

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 (7080400871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314754 + ... + 336497.

It is an arithmetic number, because the mean of its divisors is an integer number (402148110).

Almost surely, 27080400872 is an apocalyptic number.

7080400872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7080400872 is an abundant number, since it is smaller than the sum of its proper divisors (12222708408).

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

7080400872 is a wasteful number, since it uses less digits than its factorization.

7080400872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651414 (or 651407 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 7080400872 is about 84145.1179332467. The cubic root of 7080400872 is about 1920.2271931673.

The spelling of 7080400872 in words is "seven billion, eighty million, four hundred thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 151 302 453 604 906 1208 1359 1812 2718 3624 5436 10872 651251 1302502 1953753 2605004 3907506 5210008 5861259 7815012 11722518 15630024 23445036 46890072 98338901 196677802 295016703 393355604 590033406 786711208 885050109 1180066812 1770100218 2360133624 3540200436 7080400872