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130422021 = 363168897
BaseRepresentation
bin1111100011000…
…01010100000101
3100002102010101020
413301201110011
5231342001041
620535221353
73142366062
oct761412405
9302363336
10130422021
116768aaa4
1237817859
13210358c2
141346dc69
15b6b3866
hex7c61505

130422021 has 8 divisors (see below), whose sum is σ = 174174144. Its totient is φ = 86808960.

The previous prime is 130421989. The next prime is 130422041. The reversal of 130422021 is 120224031.

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

It is not a de Polignac number, because 130422021 - 25 = 130421989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130422041) 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, 32556 + ... + 36341.

It is an arithmetic number, because the mean of its divisors is an integer number (21771768).

Almost surely, 2130422021 is an apocalyptic number.

It is an amenable number.

130422021 is a deficient number, since it is larger than the sum of its proper divisors (43752123).

130422021 is an equidigital number, since it uses as much as digits as its factorization.

130422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69531.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 130422021 is about 11420.2461006758. The cubic root of 130422021 is about 507.1272822906.

Adding to 130422021 its reverse (120224031), we get a palindrome (250646052).

The spelling of 130422021 in words is "one hundred thirty million, four hundred twenty-two thousand, twenty-one".

Divisors: 1 3 631 1893 68897 206691 43474007 130422021