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420102431211 = 313943314811571
BaseRepresentation
bin1100001110100000000…
…11100110000111101011
31111011100122211200110010
412013100003212013223
523340332210244321
6520554205023003
742231346514121
oct6072003460753
91434318750403
10420102431211
11152189963511
1269503554a63
13308002cb258
1416493d0d911
15addb649676
hex61d00e61eb

420102431211 has 32 divisors (see below), whose sum is σ = 566211260160. Its totient is φ = 277047475200.

The previous prime is 420102431209. The next prime is 420102431233. The reversal of 420102431211 is 112134201024.

It is not a de Polignac number, because 420102431211 - 21 = 420102431209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420102431711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267410056 + ... + 267411626.

It is an arithmetic number, because the mean of its divisors is an integer number (17694101880).

Almost surely, 2420102431211 is an apocalyptic number.

420102431211 is a deficient number, since it is larger than the sum of its proper divisors (146108828949).

420102431211 is a wasteful number, since it uses less digits than its factorization.

420102431211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 420102431211 its reverse (112134201024), we get a palindrome (532236632235).

The spelling of 420102431211 in words is "four hundred twenty billion, one hundred two million, four hundred thirty-one thousand, two hundred eleven".

Divisors: 1 3 139 417 433 1299 1481 1571 4443 4713 60187 180561 205859 218369 617577 641273 655107 680243 1923819 2040729 2326651 6979953 89136947 94553777 267410841 283661331 323404489 970213467 1007439883 3022319649 140034143737 420102431211