Search a number
-
+
12260205731 = 127159760449
BaseRepresentation
bin10110110101100001…
…11110010010100011
31011122102201222111202
423122300332102203
5200102103040411
65344322431415
7612551013014
oct133260762243
934572658452
1012260205731
115221626034
122461b0256b
13120503b607
148443d300b
154bb51d83b
hex2dac3e4a3

12260205731 has 8 divisors (see below), whose sum is σ = 12364684800. Its totient is φ = 12155851008.

The previous prime is 12260205721. The next prime is 12260205739. The reversal of 12260205731 is 13750206221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12260205731 - 26 = 12260205667 is a prime.

It is a super-2 number, since 2×122602057312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12260205694 and 12260205703.

It is not an unprimeable number, because it can be changed into a prime (12260205739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172595 + ... + 233043.

It is an arithmetic number, because the mean of its divisors is an integer number (1545585600).

Almost surely, 212260205731 is an apocalyptic number.

12260205731 is a deficient number, since it is larger than the sum of its proper divisors (104479069).

12260205731 is a wasteful number, since it uses less digits than its factorization.

12260205731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62173.

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 12260205731 in words is "twelve billion, two hundred sixty million, two hundred five thousand, seven hundred thirty-one".

Divisors: 1 127 1597 60449 202819 7677023 96537053 12260205731