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20342412200 = 2352119246551
BaseRepresentation
bin10010111100100000…
…001001001110101000
31221111200211121111002
4102330200021032220
5313130124142300
613202320254132
71320050436125
oct227440111650
957450747432
1020342412200
118699841410
123b38771348
131bc26051c6
14dad97974c
157e0d565d5
hex4bc8093a8

20342412200 has 48 divisors (see below), whose sum is σ = 51595760160. Its totient is φ = 7397240000.

The previous prime is 20342412193. The next prime is 20342412221. The reversal of 20342412200 is 221424302.

It is a super-2 number, since 2×203424122002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4621076 + ... + 4625475.

It is an arithmetic number, because the mean of its divisors is an integer number (1074911670).

Almost surely, 220342412200 is an apocalyptic number.

20342412200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20342412200 is an abundant number, since it is smaller than the sum of its proper divisors (31253347960).

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

20342412200 is a wasteful number, since it uses less digits than its factorization.

20342412200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9246578 (or 9246569 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20342412200 its reverse (221424302), we get a palindrome (20563836502).

The spelling of 20342412200 in words is "twenty billion, three hundred forty-two million, four hundred twelve thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 9246551 18493102 36986204 46232755 73972408 92465510 101712061 184931020 203424122 231163775 369862040 406848244 462327550 508560305 813696488 924655100 1017120610 1849310200 2034241220 2542801525 4068482440 5085603050 10171206100 20342412200