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1962143090 = 25196214309
BaseRepresentation
bin111010011110011…
…1110110101110010
312001202010012022022
41310330332311302
513004302034330
6522411311442
766423640535
oct16474766562
95052105268
101962143090
11917640166
1246914b582
1325368111b
14148842a1c
15b73d5ae5
hex74f3ed72

1962143090 has 8 divisors (see below), whose sum is σ = 3531857580. Its totient is φ = 784857232.

The previous prime is 1962143069. The next prime is 1962143107. The reversal of 1962143090 is 903412691.

It can be written as a sum of positive squares in 2 ways, for example, as 1820984929 + 141158161 = 42673^2 + 11881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1962143090.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98107145 + ... + 98107164.

Almost surely, 21962143090 is an apocalyptic number.

1962143090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1962143090 is a deficient number, since it is larger than the sum of its proper divisors (1569714490).

1962143090 is a wasteful number, since it uses less digits than its factorization.

1962143090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196214316.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1962143090 is about 44296.0843641963. The cubic root of 1962143090 is about 1251.9209057847.

The spelling of 1962143090 in words is "one billion, nine hundred sixty-two million, one hundred forty-three thousand, ninety".

Divisors: 1 2 5 10 196214309 392428618 981071545 1962143090