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15161142 = 232987133
BaseRepresentation
bin111001110101…
…011100110110
31001112021011210
4321311130312
512340124032
61300542250
7242603403
oct71653466
931467153
1015161142
118615877
1250b1986
1331aaab9
1420292aa
1514e72cc
hexe75736

15161142 has 16 divisors (see below), whose sum is σ = 31368240. Its totient is φ = 4879392.

The previous prime is 15161141. The next prime is 15161143. The reversal of 15161142 is 24116151.

It is an interprime number because it is at equal distance from previous prime (15161141) and next prime (15161143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15161141) 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, 43393 + ... + 43740.

It is an arithmetic number, because the mean of its divisors is an integer number (1960515).

Almost surely, 215161142 is an apocalyptic number.

15161142 is an abundant number, since it is smaller than the sum of its proper divisors (16207098).

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

15161142 is a wasteful number, since it uses less digits than its factorization.

15161142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87167.

The product of its digits is 240, while the sum is 21.

The square root of 15161142 is about 3893.7311155240. The cubic root of 15161142 is about 247.5011978312.

Adding to 15161142 its reverse (24116151), we get a palindrome (39277293).

The spelling of 15161142 in words is "fifteen million, one hundred sixty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 29 58 87 174 87133 174266 261399 522798 2526857 5053714 7580571 15161142