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30442053 = 3175967151
BaseRepresentation
bin111010000100…
…0001001000101
32010021121122110
41310020021011
530243121203
63004251233
7516516225
oct164101105
963247573
1030442053
1116202624
12a240b19
1363cb265
144086085
152a14d03
hex1d08245

30442053 has 32 divisors (see below), whose sum is σ = 44651520. Its totient is φ = 18374400.

The previous prime is 30442051. The next prime is 30442079. The reversal of 30442053 is 35024403.

It is a happy number.

It is not a de Polignac number, because 30442053 - 21 = 30442051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201528 + ... + 201678.

It is an arithmetic number, because the mean of its divisors is an integer number (1395360).

Almost surely, 230442053 is an apocalyptic number.

It is an amenable number.

30442053 is a deficient number, since it is larger than the sum of its proper divisors (14209467).

30442053 is a wasteful number, since it uses less digits than its factorization.

30442053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 30442053 is about 5517.4317394962. The cubic root of 30442053 is about 312.2419946183.

Adding to 30442053 its reverse (35024403), we get a palindrome (65466456).

The spelling of 30442053 in words is "thirty million, four hundred forty-two thousand, fifty-three".

Divisors: 1 3 17 51 59 67 151 177 201 453 1003 1139 2567 3009 3417 3953 7701 8909 10117 11859 26727 30351 67201 151453 171989 201603 454359 515967 596903 1790709 10147351 30442053