Search a number
-
+
29205812613120 = 21235111331157683
BaseRepresentation
bin1101010010000000000100…
…00101100001000000000000
310211102001022022000100200220
412221000002011201000000
512312002001012104440
6142040544243143040
76103023156110133
oct651000205410000
9124361268010626
1029205812613120
11934012a90a660
123338347674a80
13133b13379c430
1472d7d6db621a
15359a9be578d0
hex1a9002161000

29205812613120 has 1664 divisors, whose sum is σ = 114214335234048. Its totient is φ = 6275255500800.

The previous prime is 29205812613079. The next prime is 29205812613127. The reversal of 29205812613120 is 2131621850292.

It is a tau number, because it is divible by the number of its divisors (1664).

It is a super-2 number, since 2×292058126131202 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29205812613127) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 42761072299 + ... + 42761072981.

Almost surely, 229205812613120 is an apocalyptic number.

29205812613120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29205812613120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57107167617024).

29205812613120 is an abundant number, since it is smaller than the sum of its proper divisors (85008522620928).

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

29205812613120 is a wasteful number, since it uses less digits than its factorization.

29205812613120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 29205812613120 in words is "twenty-nine trillion, two hundred five billion, eight hundred twelve million, six hundred thirteen thousand, one hundred twenty".