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30442152 = 2331397571
BaseRepresentation
bin111010000100…
…0001010101000
32010021121210010
41310020022220
530243122102
63004251520
7516516426
oct164101250
963247703
1030442152
1116202704
12a240ba0
1363cb310
144086116
152a14d6c
hex1d082a8

30442152 has 32 divisors (see below), whose sum is σ = 81960480. Its totient is φ = 9366720.

The previous prime is 30442129. The next prime is 30442177. The reversal of 30442152 is 25124403.

It is a super-2 number, since 2×304421522 = 1853449236782208, which contains 22 as substring.

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, 48474 + ... + 49097.

It is an arithmetic number, because the mean of its divisors is an integer number (2561265).

Almost surely, 230442152 is an apocalyptic number.

It is an amenable number.

30442152 is an abundant number, since it is smaller than the sum of its proper divisors (51518328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30442152 is a wasteful number, since it uses less digits than its factorization.

30442152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97593 (or 97589 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 30442152 is about 5517.4407110544. The cubic root of 30442152 is about 312.2423330966.

Adding to 30442152 its reverse (25124403), we get a palindrome (55566555).

The spelling of 30442152 in words is "thirty million, four hundred forty-two thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 97571 195142 292713 390284 585426 780568 1170852 1268423 2341704 2536846 3805269 5073692 7610538 10147384 15221076 30442152