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420434597 = 1142190787
BaseRepresentation
bin11001000011110…
…101001010100101
31002022010021211202
4121003311022211
51330112401342
6105415212245
713263430562
oct3103651245
91068107752
10420434597
111a6362810
12b8977085
136914778b
143dba3869
1526d9d332
hex190f52a5

420434597 has 8 divisors (see below), whose sum is σ = 459750432. Its totient is φ = 381301200.

The previous prime is 420434587. The next prime is 420434621. The reversal of 420434597 is 795434024.

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

It is a cyclic number.

It is not a de Polignac number, because 420434597 - 26 = 420434533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420434597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420434557) 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, 40763 + ... + 50024.

It is an arithmetic number, because the mean of its divisors is an integer number (57468804).

Almost surely, 2420434597 is an apocalyptic number.

It is an amenable number.

420434597 is a deficient number, since it is larger than the sum of its proper divisors (39315835).

420434597 is a wasteful number, since it uses less digits than its factorization.

420434597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91219.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 420434597 is about 20504.5018715403. The cubic root of 420434597 is about 749.1454545578.

The spelling of 420434597 in words is "four hundred twenty million, four hundred thirty-four thousand, five hundred ninety-seven".

Divisors: 1 11 421 4631 90787 998657 38221327 420434597