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720130768 = 2476429739
BaseRepresentation
bin101010111011000…
…101001011010000
31212012001102200221
4222323011023100
52433323141033
6155242522424
723563003420
oct5273051320
91765042627
10720130768
1133a5499a5
12181206414
13b626a1a6
146b8d8480
154334c12d
hex2aec52d0

720130768 has 20 divisors (see below), whose sum is σ = 1594575520. Its totient is φ = 308627424.

The previous prime is 720130753. The next prime is 720130793. The reversal of 720130768 is 867031027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3214758 + ... + 3214981.

It is an arithmetic number, because the mean of its divisors is an integer number (79728776).

Almost surely, 2720130768 is an apocalyptic number.

It is an amenable number.

720130768 is an abundant number, since it is smaller than the sum of its proper divisors (874444752).

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

720130768 is a wasteful number, since it uses less digits than its factorization.

720130768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6429754 (or 6429748 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 720130768 is about 26835.2523371777. The cubic root of 720130768 is about 896.3352075393.

The spelling of 720130768 in words is "seven hundred twenty million, one hundred thirty thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 6429739 12859478 25718956 45008173 51437912 90016346 102875824 180032692 360065384 720130768