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707192421 = 31318133139
BaseRepresentation
bin101010001001101…
…110011001100101
31211021201002121220
4222021232121211
52422020124141
6154101330553
723345015325
oct5211563145
91737632556
10707192421
11333212151
12178a06a59
13b368a070
1469ccb285
1542143766
hex2a26e665

707192421 has 8 divisors (see below), whose sum is σ = 1015455840. Its totient is φ = 435195312.

The previous prime is 707192411. The next prime is 707192449. The reversal of 707192421 is 124291707.

707192421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 707192421 - 214 = 707176037 is a prime.

It is a super-2 number, since 2×7071924212 = 1000242240639682482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707192411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9066531 + ... + 9066608.

It is an arithmetic number, because the mean of its divisors is an integer number (126931980).

Almost surely, 2707192421 is an apocalyptic number.

It is an amenable number.

707192421 is a deficient number, since it is larger than the sum of its proper divisors (308263419).

707192421 is a wasteful number, since it uses less digits than its factorization.

707192421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18133155.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 707192421 is about 26593.0897227080. The cubic root of 707192421 is about 890.9346831563.

The spelling of 707192421 in words is "seven hundred seven million, one hundred ninety-two thousand, four hundred twenty-one".

Divisors: 1 3 13 39 18133139 54399417 235730807 707192421