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3142131320 = 23578553283
BaseRepresentation
bin1011101101001001…
…0001111001111000
322002222110210212002
42323102101321320
522413341200240
61235442440132
7140602450466
oct27322217170
98088423762
103142131320
111372718849
12738363048
133b0c89a03
1421b443836
15135cbbd15
hexbb491e78

3142131320 has 16 divisors (see below), whose sum is σ = 7069795560. Its totient is φ = 1256852512.

The previous prime is 3142131313. The next prime is 3142131323. The reversal of 3142131320 is 231312413.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3142131292 and 3142131301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142131323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39276602 + ... + 39276681.

Almost surely, 23142131320 is an apocalyptic number.

It is an amenable number.

3142131320 is an abundant number, since it is smaller than the sum of its proper divisors (3927664240).

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

3142131320 is a wasteful number, since it uses less digits than its factorization.

3142131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78553294 (or 78553290 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3142131320 is about 56054.7171966820. The cubic root of 3142131320 is about 1464.6755904744.

Adding to 3142131320 its reverse (231312413), we get a palindrome (3373443733).

The spelling of 3142131320 in words is "three billion, one hundred forty-two million, one hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 78553283 157106566 314213132 392766415 628426264 785532830 1571065660 3142131320