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1423290681 = 322922724023
BaseRepresentation
bin101010011010101…
…1011000100111001
310200012011122202200
41110311123010321
510403330300211
6353122020413
750161525341
oct12465330471
93605148680
101423290681
1167045739a
123387a7709
13198b44947
14d7055d21
1584e45b56
hex54d5b139

1423290681 has 24 divisors (see below), whose sum is σ = 2136214080. Its totient is φ = 912067296.

The previous prime is 1423290653. The next prime is 1423290697. The reversal of 1423290681 is 1860923241.

It is not a de Polignac number, because 1423290681 - 214 = 1423274297 is a prime.

It is a super-2 number, since 2×14232906812 = 4051512725242887522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1423290611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47236 + ... + 71258.

It is an arithmetic number, because the mean of its divisors is an integer number (89008920).

Almost surely, 21423290681 is an apocalyptic number.

It is an amenable number.

1423290681 is a deficient number, since it is larger than the sum of its proper divisors (712923399).

1423290681 is a wasteful number, since it uses less digits than its factorization.

1423290681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24285 (or 24282 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1423290681 is about 37726.5248995982. The cubic root of 1423290681 is about 1124.8584331493.

The spelling of 1423290681 in words is "one billion, four hundred twenty-three million, two hundred ninety thousand, six hundred eighty-one".

Divisors: 1 3 9 29 87 227 261 681 2043 6583 19749 24023 59247 72069 216207 696667 2090001 5453221 6270003 16359663 49078989 158143409 474430227 1423290681