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1242153304 = 23722181309
BaseRepresentation
bin100101000001001…
…1100000101011000
310012120022220222221
41022002130011120
510020442401204
6323131353424
742532062130
oct11202340530
93176286887
101242153304
11588188187
122a7bb2874
1316a463172
14bad83ac0
15740b5654
hex4a09c158

1242153304 has 16 divisors (see below), whose sum is σ = 2661757200. Its totient is φ = 532351392.

The previous prime is 1242153301. The next prime is 1242153337. The reversal of 1242153304 is 4033512421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242153301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11090599 + ... + 11090710.

It is an arithmetic number, because the mean of its divisors is an integer number (166359825).

Almost surely, 21242153304 is an apocalyptic number.

1242153304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1242153304 is an abundant number, since it is smaller than the sum of its proper divisors (1419603896).

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

1242153304 is a wasteful number, since it uses less digits than its factorization.

1242153304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22181322 (or 22181318 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1242153304 is about 35244.1953234855. The cubic root of 1242153304 is about 1074.9585861818.

Adding to 1242153304 its reverse (4033512421), we get a palindrome (5275665725).

The spelling of 1242153304 in words is "one billion, two hundred forty-two million, one hundred fifty-three thousand, three hundred four".

Divisors: 1 2 4 7 8 14 28 56 22181309 44362618 88725236 155269163 177450472 310538326 621076652 1242153304