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3143142520 = 235711225509
BaseRepresentation
bin1011101101011000…
…1000110001111000
322010001101011221221
42323112020301320
522414121030040
61235520241424
7140614161550
oct27326106170
98101334857
103143142520
111373249551
12738770274
133b125205b
1421b628160
15135e1b74a
hexbb588c78

3143142520 has 32 divisors (see below), whose sum is σ = 8082367200. Its totient is φ = 1077648768.

The previous prime is 3143142503. The next prime is 3143142539. The reversal of 3143142520 is 252413413.

3143142520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5612475 + ... + 5613034.

It is an arithmetic number, because the mean of its divisors is an integer number (252573975).

Almost surely, 23143142520 is an apocalyptic number.

It is an amenable number.

3143142520 is an abundant number, since it is smaller than the sum of its proper divisors (4939224680).

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

3143142520 is a wasteful number, since it uses less digits than its factorization.

3143142520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11225527 (or 11225523 counting only the distinct ones).

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

The square root of 3143142520 is about 56063.7362294023. The cubic root of 3143142520 is about 1464.8326941464.

Adding to 3143142520 its reverse (252413413), we get a palindrome (3395555933).

The spelling of 3143142520 in words is "three billion, one hundred forty-three million, one hundred forty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 11225509 22451018 44902036 56127545 78578563 89804072 112255090 157157126 224510180 314314252 392892815 449020360 628628504 785785630 1571571260 3143142520