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30296142 = 23217181547
BaseRepresentation
bin111001110010…
…0100001001110
32010000012111100
41303210201032
530223434032
63001203530
7515340642
oct163444116
963005440
1030296142
1116112a38
12a1905a6
136379a16
144048c22
1529d697c
hex1ce484e

30296142 has 48 divisors (see below), whose sum is σ = 70014672. Its totient is φ = 9434880.

The previous prime is 30296137. The next prime is 30296143. The reversal of 30296142 is 24169203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30296143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55113 + ... + 55659.

It is an arithmetic number, because the mean of its divisors is an integer number (1458639).

Almost surely, 230296142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30296142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35007336).

30296142 is an abundant number, since it is smaller than the sum of its proper divisors (39718530).

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

30296142 is a wasteful number, since it uses less digits than its factorization.

30296142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30296142 is about 5504.1931288791. The cubic root of 30296142 is about 311.7423291697.

The spelling of 30296142 in words is "thirty million, two hundred ninety-six thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 181 306 362 543 547 1086 1094 1629 1641 3077 3258 3282 4923 6154 9231 9299 9846 18462 18598 27693 27897 55386 55794 83691 99007 167382 198014 297021 594042 891063 1683119 1782126 3366238 5049357 10098714 15148071 30296142