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12420701 = 83263569
BaseRepresentation
bin101111011000…
…011001011101
3212101000222222
4233120121131
511134430301
61122115125
7210400646
oct57303135
925330888
1012420701
117013947
1241abaa5
13275b637
1419146cd
15115531b
hexbd865d

12420701 has 8 divisors (see below), whose sum is σ = 12640320. Its totient is φ = 12202912.

The previous prime is 12420691. The next prime is 12420703. The reversal of 12420701 is 10702421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12420701 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 12420701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420703) 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, 21545 + ... + 22113.

It is an arithmetic number, because the mean of its divisors is an integer number (1580040).

Almost surely, 212420701 is an apocalyptic number.

It is an amenable number.

12420701 is a deficient number, since it is larger than the sum of its proper divisors (219619).

12420701 is an equidigital number, since it uses as much as digits as its factorization.

12420701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12420701 is about 3524.3014910759. The cubic root of 12420701 is about 231.5876357468.

The spelling of 12420701 in words is "twelve million, four hundred twenty thousand, seven hundred one".

Divisors: 1 83 263 569 21829 47227 149647 12420701