Search a number
-
+
2664513407 = 23131887997
BaseRepresentation
bin1001111011010001…
…0011111101111111
320212200202022020202
42132310103331333
520424103412112
61120221434115
7123012663443
oct23664237577
96780668222
102664513407
1111480593a6
1262440b93b
1333604036a
141b3c36823
15108dc56c2
hex9ed13f7f

2664513407 has 16 divisors (see below), whose sum is σ = 2807557632. Its totient is φ = 2523824160.

The previous prime is 2664513391. The next prime is 2664513409. The reversal of 2664513407 is 7043154662.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2664513407 - 24 = 2664513391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664513409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2672033 + ... + 2673029.

It is an arithmetic number, because the mean of its divisors is an integer number (175472352).

Almost surely, 22664513407 is an apocalyptic number.

2664513407 is a deficient number, since it is larger than the sum of its proper divisors (143044225).

2664513407 is a wasteful number, since it uses less digits than its factorization.

2664513407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2664513407 is about 51618.9248919425. The cubic root of 2664513407 is about 1386.3492014774.

The spelling of 2664513407 in words is "two billion, six hundred sixty-four million, five hundred thirteen thousand, four hundred seven".

Divisors: 1 23 131 887 997 3013 20401 22931 116197 130607 884339 2672531 3003961 20339797 115848409 2664513407