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20070290427 = 3115081119699
BaseRepresentation
bin10010101100010010…
…000101001111111011
31220210201210101120220
4102230102011033323
5312100443243202
613115315551123
71310234440155
oct225422051773
956721711526
1020070290427
11856a179290
123a815bb4a3
131b7b1186c5
14d85781ad5
157c7002abc
hex4ac4853fb

20070290427 has 16 divisors (see below), whose sum is σ = 29199139200. Its totient is φ = 12161316800.

The previous prime is 20070290407. The next prime is 20070290483. The reversal of 20070290427 is 72409207002.

It is a cyclic number.

It is not a de Polignac number, because 20070290427 - 26 = 20070290363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20070290407) 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, 107824 + ... + 227522.

It is an arithmetic number, because the mean of its divisors is an integer number (1824946200).

Almost surely, 220070290427 is an apocalyptic number.

20070290427 is a deficient number, since it is larger than the sum of its proper divisors (9128848773).

20070290427 is a wasteful number, since it uses less digits than its factorization.

20070290427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124794.

The product of its (nonzero) digits is 14112, while the sum is 33.

Adding to 20070290427 its reverse (72409207002), we get a palindrome (92479497429).

The spelling of 20070290427 in words is "twenty billion, seventy million, two hundred ninety thousand, four hundred twenty-seven".

Divisors: 1 3 11 33 5081 15243 55891 119699 167673 359097 1316689 3950067 608190619 1824571857 6690096809 20070290427