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122023231 = 1175114771
BaseRepresentation
bin1110100010111…
…10110100111111
322111121102101221
413101132310333
5222214220411
620035214211
73011115601
oct721366477
9274542357
10122023231
1162973950
1234a47367
131c384ac5
14122c5171
15aaa5071
hex745ed3f

122023231 has 8 divisors (see below), whose sum is σ = 133302528. Its totient is φ = 110775000.

The previous prime is 122023217. The next prime is 122023247. The reversal of 122023231 is 132320221.

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 122023231 - 219 = 121498943 is a prime.

It is a super-2 number, since 2×1220232312 = 29779337807358722, 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 (122023201) 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, 876 + ... + 15646.

It is an arithmetic number, because the mean of its divisors is an integer number (16662816).

Almost surely, 2122023231 is an apocalyptic number.

122023231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122023231 is a deficient number, since it is larger than the sum of its proper divisors (11279297).

122023231 is a wasteful number, since it uses less digits than its factorization.

122023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15533.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 122023231 is about 11046.4125850884. The cubic root of 122023231 is about 495.9990447757. Note that the first 3 decimals are identical.

Adding to 122023231 its reverse (132320221), we get a palindrome (254343452).

The spelling of 122023231 in words is "one hundred twenty-two million, twenty-three thousand, two hundred thirty-one".

Divisors: 1 11 751 8261 14771 162481 11093021 122023231