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122300421 = 3131311197
BaseRepresentation
bin1110100101000…
…10100000000101
322112010111122020
413102202200011
5222302103141
620045153353
73013351665
oct722424005
9275114566
10122300421
1163043131
1234b5b859
131c451019
14123581a5
15ab0c266
hex74a2805

122300421 has 8 divisors (see below), whose sum is σ = 164312544. Its totient is φ = 80910960.

The previous prime is 122300383. The next prime is 122300441. The reversal of 122300421 is 124003221.

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

It is not a de Polignac number, because 122300421 - 27 = 122300293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122300421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122300441) 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, 155206 + ... + 155991.

It is an arithmetic number, because the mean of its divisors is an integer number (20539068).

Almost surely, 2122300421 is an apocalyptic number.

It is an amenable number.

122300421 is a deficient number, since it is larger than the sum of its proper divisors (42012123).

122300421 is a wasteful number, since it uses less digits than its factorization.

122300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311331.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 122300421 is about 11058.9520751290. The cubic root of 122300421 is about 496.3743339731.

Adding to 122300421 its reverse (124003221), we get a palindrome (246303642).

The spelling of 122300421 in words is "one hundred twenty-two million, three hundred thousand, four hundred twenty-one".

Divisors: 1 3 131 393 311197 933591 40766807 122300421