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10024320421 = 78712737383
BaseRepresentation
bin10010101010111111…
…01111110110100101
3221212121112020110201
421111133233312211
5131012211223141
64334411550501
7503261213653
oct112537576645
927777466421
1010024320421
114284516335
121b3915b431
13c39a5425b
146b1493dd3
153da0b4031
hex2557efda5

10024320421 has 4 divisors (see below), whose sum is σ = 10037058592. Its totient is φ = 10011582252.

The previous prime is 10024320403. The next prime is 10024320431. The reversal of 10024320421 is 12402342001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12402342001 = 71771763143.

It is a cyclic number.

It is not a de Polignac number, because 10024320421 - 25 = 10024320389 is a prime.

It is a super-3 number, since 3×100243204213 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10024320401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6367905 + ... + 6369478.

It is an arithmetic number, because the mean of its divisors is an integer number (2509264648).

Almost surely, 210024320421 is an apocalyptic number.

It is an amenable number.

10024320421 is a deficient number, since it is larger than the sum of its proper divisors (12738171).

10024320421 is an equidigital number, since it uses as much as digits as its factorization.

10024320421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738170.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 10024320421 its reverse (12402342001), we get a palindrome (22426662422).

The spelling of 10024320421 in words is "ten billion, twenty-four million, three hundred twenty thousand, four hundred twenty-one".

Divisors: 1 787 12737383 10024320421