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1222402241 = 6178725463
BaseRepresentation
bin100100011011100…
…0110000011000001
310011012011110122002
41020313012003001
510000413332431
6321144153345
742202150634
oct11067060301
93135143562
101222402241
11578017995
122a1468855
13166339148
14b84c1c1b
15724b33cb
hex48dc60c1

1222402241 has 8 divisors (see below), whose sum is σ = 1244069184. Its totient is φ = 1200787920.

The previous prime is 1222402211. The next prime is 1222402271. The reversal of 1222402241 is 1422042221.

It is an interprime number because it is at equal distance from previous prime (1222402211) and next prime (1222402271).

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

It is a cyclic number.

It is not a de Polignac number, because 1222402241 - 222 = 1218207937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222402211) 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, 35276 + ... + 60738.

It is an arithmetic number, because the mean of its divisors is an integer number (155508648).

Almost surely, 21222402241 is an apocalyptic number.

It is an amenable number.

1222402241 is a deficient number, since it is larger than the sum of its proper divisors (21666943).

1222402241 is an equidigital number, since it uses as much as digits as its factorization.

1222402241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26311.

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

The square root of 1222402241 is about 34962.8694617590. The cubic root of 1222402241 is about 1069.2305998225.

Adding to 1222402241 its reverse (1422042221), we get a palindrome (2644444462).

The spelling of 1222402241 in words is "one billion, two hundred twenty-two million, four hundred two thousand, two hundred forty-one".

Divisors: 1 61 787 25463 48007 1553243 20039381 1222402241