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1230423454 = 213317149287
BaseRepresentation
bin100100101010110…
…1100010110011110
310011202020222200001
41021111230112132
510004442022304
6322032124514
742330266251
oct11125542636
93152228601
101230423454
115815a6397
122a409673a
13167bb7120
14b95ad098
1573049da4
hex4956c59e

1230423454 has 16 divisors (see below), whose sum is σ = 1993890528. Its totient is φ = 566092512.

The previous prime is 1230423427. The next prime is 1230423463. The reversal of 1230423454 is 4543240321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66402 + ... + 82885.

It is an arithmetic number, because the mean of its divisors is an integer number (124618158).

Almost surely, 21230423454 is an apocalyptic number.

1230423454 is a deficient number, since it is larger than the sum of its proper divisors (763467074).

1230423454 is a wasteful number, since it uses less digits than its factorization.

1230423454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149619.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1230423454 is about 35077.3923489190. The cubic root of 1230423454 is about 1071.5642111638.

Adding to 1230423454 its reverse (4543240321), we get a palindrome (5773663775).

The spelling of 1230423454 in words is "one billion, two hundred thirty million, four hundred twenty-three thousand, four hundred fifty-four".

Divisors: 1 2 13 26 317 634 4121 8242 149287 298574 1940731 3881462 47323979 94647958 615211727 1230423454