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3143457172 = 221495274257
BaseRepresentation
bin1011101101011101…
…0101100110010100
322010001222011120201
42323113111212110
522414211112142
61235531110244
7140616642112
oct27327254624
98101864521
103143457172
111373443999
127388a2384
133b133233b
1421b6aaab2
15135e7eab7
hexbb5d5994

3143457172 has 12 divisors (see below), whose sum is σ = 5537970900. Its totient is φ = 1561179776.

The previous prime is 3143457151. The next prime is 3143457179. The reversal of 3143457172 is 2717543413.

It can be written as a sum of positive squares in 2 ways, for example, as 1057160196 + 2086296976 = 32514^2 + 45676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143457179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2636533 + ... + 2637724.

It is an arithmetic number, because the mean of its divisors is an integer number (461497575).

Almost surely, 23143457172 is an apocalyptic number.

It is an amenable number.

3143457172 is a deficient number, since it is larger than the sum of its proper divisors (2394513728).

3143457172 is a wasteful number, since it uses less digits than its factorization.

3143457172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274410 (or 5274408 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 3143457172 is about 56066.5423581658. The cubic root of 3143457172 is about 1464.8815727400.

The spelling of 3143457172 in words is "three billion, one hundred forty-three million, four hundred fifty-seven thousand, one hundred seventy-two".

Divisors: 1 2 4 149 298 596 5274257 10548514 21097028 785864293 1571728586 3143457172