Search a number
-
+
30442153 = 719122769
BaseRepresentation
bin111010000100…
…0001010101001
32010021121210011
41310020022221
530243122103
63004251521
7516516430
oct164101251
963247704
1030442153
1116202705
12a240ba1
1363cb311
144086117
152a14d6d
hex1d082a9

30442153 has 8 divisors (see below), whose sum is σ = 34974720. Its totient is φ = 25955520.

The previous prime is 30442129. The next prime is 30442177. The reversal of 30442153 is 35124403.

It is an interprime number because it is at equal distance from previous prime (30442129) and next prime (30442177).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30442153 - 217 = 30311081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30442103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10048 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (4371840).

Almost surely, 230442153 is an apocalyptic number.

It is an amenable number.

30442153 is a deficient number, since it is larger than the sum of its proper divisors (4532567).

30442153 is a wasteful number, since it uses less digits than its factorization.

30442153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22967.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30442153 is about 5517.4408016761. The cubic root of 30442153 is about 312.2423365155.

Adding to 30442153 its reverse (35124403), we get a palindrome (65566556).

The spelling of 30442153 in words is "thirty million, four hundred forty-two thousand, one hundred fifty-three".

Divisors: 1 7 191 1337 22769 159383 4348879 30442153