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122522231 = 1324139107
BaseRepresentation
bin1110100110110…
…00101001110111
322112112202220102
413103120221313
5222331202411
620054024315
73015264446
oct723305167
9275482812
10122522231
1163184847
123504809b
131c4cac80
14123b4d5d
15ab52d3b
hex74d8a77

122522231 has 8 divisors (see below), whose sum is σ = 132497904. Its totient is φ = 112625280.

The previous prime is 122522209. The next prime is 122522243. The reversal of 122522231 is 132225221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122522231 is a prime.

It is a super-2 number, since 2×1225222312 = 30023394178434722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122522131) 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, 16421 + ... + 22686.

It is an arithmetic number, because the mean of its divisors is an integer number (16562238).

Almost surely, 2122522231 is an apocalyptic number.

122522231 is a deficient number, since it is larger than the sum of its proper divisors (9975673).

122522231 is a wasteful number, since it uses less digits than its factorization.

122522231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39361.

The product of its digits is 480, while the sum is 20.

The square root of 122522231 is about 11068.9760592387. The cubic root of 122522231 is about 496.6742356298.

Adding to 122522231 its reverse (132225221), we get a palindrome (254747452).

The spelling of 122522231 in words is "one hundred twenty-two million, five hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 13 241 3133 39107 508391 9424787 122522231