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12420677 = 311013967
BaseRepresentation
bin101111011000…
…011001000101
3212101000222002
4233120121011
511134430202
61122115045
7210400613
oct57303105
925330862
1012420677
117013925
1241aba85
13275b619
1419146b3
151155302
hexbd8645

12420677 has 8 divisors (see below), whose sum is σ = 12951552. Its totient is φ = 11898000.

The previous prime is 12420673. The next prime is 12420689. The reversal of 12420677 is 77602421.

12420677 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 a cyclic number.

It is not a de Polignac number, because 12420677 - 22 = 12420673 is a prime.

It is a super-3 number, since 3×124206773 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420673) 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, 1148 + ... + 5114.

It is an arithmetic number, because the mean of its divisors is an integer number (1618944).

Almost surely, 212420677 is an apocalyptic number.

It is an amenable number.

12420677 is a deficient number, since it is larger than the sum of its proper divisors (530875).

12420677 is a wasteful number, since it uses less digits than its factorization.

12420677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 12420677 is about 3524.2980861442. The cubic root of 12420677 is about 231.5874865843.

The spelling of 12420677 in words is "twelve million, four hundred twenty thousand, six hundred seventy-seven".

Divisors: 1 31 101 3131 3967 122977 400667 12420677