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707412020 = 22572721849
BaseRepresentation
bin101010001010100…
…100000000110100
31211022010020212012
4222022210000310
52422044141040
6154110143352
723346621500
oct5212440064
91738106765
10707412020
11333352137
12178ab1b58
13b3735cc3
1469d47300
1542188865
hex2a2a4034

707412020 has 36 divisors (see below), whose sum is σ = 1728108900. Its totient is φ = 242540928.

The previous prime is 707412019. The next prime is 707412023. The reversal of 707412020 is 20214707.

It can be written as a sum of positive squares in 2 ways, for example, as 128913316 + 578498704 = 11354^2 + 24052^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707412023) 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, 359945 + ... + 361904.

It is an arithmetic number, because the mean of its divisors is an integer number (48003025).

Almost surely, 2707412020 is an apocalyptic number.

707412020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

707412020 is an abundant number, since it is smaller than the sum of its proper divisors (1020696880).

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

707412020 is a wasteful number, since it uses less digits than its factorization.

707412020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721872 (or 721863 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 707412020 is about 26597.2182756017. The cubic root of 707412020 is about 891.0268919678.

Adding to 707412020 its reverse (20214707), we get a palindrome (727626727).

The spelling of 707412020 in words is "seven hundred seven million, four hundred twelve thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 721849 1443698 2887396 3609245 5052943 7218490 10105886 14436980 20211772 25264715 35370601 50529430 70741202 101058860 141482404 176853005 353706010 707412020