Search a number
-
+
29206345720 = 235730158643
BaseRepresentation
bin11011001100110101…
…010111011111111000
32210101102220002101011
4123030311113133320
5434303311030340
621230041203304
72052521561656
oct331465273770
983342802334
1029206345720
1111428247902
1257b1190534
1329a5b24696
1415b0c91dd6
15b5e1070ea
hex6ccd577f8

29206345720 has 16 divisors (see below), whose sum is σ = 65714277960. Its totient is φ = 11682538272.

The previous prime is 29206345711. The next prime is 29206345723. The reversal of 29206345720 is 2754360292.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 730158643 = 29206345720 / (2 + 9 + 2 + 0 + 6 + 3 + 4 + 5 + 7 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29206345723) 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, 365079282 + ... + 365079361.

Almost surely, 229206345720 is an apocalyptic number.

29206345720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29206345720 is an abundant number, since it is smaller than the sum of its proper divisors (36507932240).

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

29206345720 is a wasteful number, since it uses less digits than its factorization.

29206345720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730158654 (or 730158650 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 29206345720 in words is "twenty-nine billion, two hundred six million, three hundred forty-five thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 730158643 1460317286 2920634572 3650793215 5841269144 7301586430 14603172860 29206345720