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1022420441 = 7146060063
BaseRepresentation
bin111100111100001…
…110010111011001
32122020212100011202
4330330032113121
54043214423231
6245242003545
734223300420
oct7474162731
92566770152
101022420441
11485147679
122464a65b5
13133a8a213
1499b062b7
155eb5e5cb
hex3cf0e5d9

1022420441 has 4 divisors (see below), whose sum is σ = 1168480512. Its totient is φ = 876360372.

The previous prime is 1022420429. The next prime is 1022420453. The reversal of 1022420441 is 1440242201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1440242201 = 2336181297.

It is an interprime number because it is at equal distance from previous prime (1022420429) and next prime (1022420453).

It is a cyclic number.

It is not a de Polignac number, because 1022420441 - 210 = 1022419417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1022420411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73030025 + ... + 73030038.

It is an arithmetic number, because the mean of its divisors is an integer number (292120128).

Almost surely, 21022420441 is an apocalyptic number.

It is an amenable number.

1022420441 is a deficient number, since it is larger than the sum of its proper divisors (146060071).

1022420441 is an equidigital number, since it uses as much as digits as its factorization.

1022420441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146060070.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1022420441 is about 31975.3098655822. The cubic root of 1022420441 is about 1007.4183128873.

Adding to 1022420441 its reverse (1440242201), we get a palindrome (2462662642).

The spelling of 1022420441 in words is "one billion, twenty-two million, four hundred twenty thousand, four hundred forty-one".

Divisors: 1 7 146060063 1022420441