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2148152769 = 32734097663
BaseRepresentation
bin1000000000001010…
…0011010111000001
312112201010110121200
42000002203113001
513344411342034
6553054211413
7104142666030
oct20002432701
95481113550
102148152769
11a02637a74
124bb4b3b69
1328307a519
14165422717
15c88c9a99
hex800a35c1

2148152769 has 12 divisors (see below), whose sum is σ = 3546157056. Its totient is φ = 1227515832.

The previous prime is 2148152767. The next prime is 2148152789. The reversal of 2148152769 is 9672518412.

2148152769 is a `hidden beast` number, since 21 + 48 + 1 + 527 + 69 = 666.

It is not a de Polignac number, because 2148152769 - 21 = 2148152767 is a prime.

It is a super-2 number, since 2×21481527692 = 9229120637924734722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2148152761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17048769 + ... + 17048894.

It is an arithmetic number, because the mean of its divisors is an integer number (295513088).

Almost surely, 22148152769 is an apocalyptic number.

It is an amenable number.

2148152769 is a deficient number, since it is larger than the sum of its proper divisors (1398004287).

2148152769 is a wasteful number, since it uses less digits than its factorization.

2148152769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34097676 (or 34097673 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 2148152769 is about 46348.1689929602. The cubic root of 2148152769 is about 1290.2931387185.

The spelling of 2148152769 in words is "two billion, one hundred forty-eight million, one hundred fifty-two thousand, seven hundred sixty-nine".

Divisors: 1 3 7 9 21 63 34097663 102292989 238683641 306878967 716050923 2148152769