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30423349 = 1129283337
BaseRepresentation
bin111010000001…
…1100100110101
32010020122222201
41310003210311
530242021344
63004024501
7516410545
oct164034465
963218881
1030423349
111619a570
12a232131
1363c28a8
14407d325
152a0e4d4
hex1d03935

30423349 has 16 divisors (see below), whose sum is σ = 34557120. Its totient is φ = 26530560.

The previous prime is 30423299. The next prime is 30423359. The reversal of 30423349 is 94332403.

It is a cyclic number.

It is not a de Polignac number, because 30423349 - 29 = 30422837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90109 + ... + 90445.

It is an arithmetic number, because the mean of its divisors is an integer number (2159820).

Almost surely, 230423349 is an apocalyptic number.

It is an amenable number.

30423349 is a deficient number, since it is larger than the sum of its proper divisors (4133771).

30423349 is a wasteful number, since it uses less digits than its factorization.

30423349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 30423349 is about 5515.7364875418. The cubic root of 30423349 is about 312.1780329798.

It can be divided in two parts, 304 and 23349, that added together give a triangular number (23653 = T217).

The spelling of 30423349 in words is "thirty million, four hundred twenty-three thousand, three hundred forty-nine".

Divisors: 1 11 29 283 319 337 3113 3707 8207 9773 90277 95371 107503 1049081 2765759 30423349