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712288990 = 25721453651
BaseRepresentation
bin101010011101001…
…010101011011110
31211122022000210201
4222131022223132
52424321221430
6154402454114
723436233200
oct5235125336
91748260721
10712288990
11336083296
1217a66433a
13b4752a9a
146a856770
15427ed8ca
hex2a74aade

712288990 has 24 divisors (see below), whose sum is σ = 1491446952. Its totient is φ = 244213200.

The previous prime is 712288979. The next prime is 712289027. The reversal of 712288990 is 99882217.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 712288990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 726336 + ... + 727315.

It is an arithmetic number, because the mean of its divisors is an integer number (62143623).

Almost surely, 2712288990 is an apocalyptic number.

712288990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

712288990 is an abundant number, since it is smaller than the sum of its proper divisors (779157962).

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

712288990 is a wasteful number, since it uses less digits than its factorization.

712288990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453672 (or 1453665 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 712288990 is about 26688.7427579495. The cubic root of 712288990 is about 893.0698142628.

The spelling of 712288990 in words is "seven hundred twelve million, two hundred eighty-eight thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1453651 2907302 7268255 10175557 14536510 20351114 50877785 71228899 101755570 142457798 356144495 712288990