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122533631 = 1115173771
BaseRepresentation
bin1110100110110…
…11011011111111
322112120100112122
413103123123333
5222332034011
620054153155
73015342623
oct723333377
9275510478
10122533631
1163192370
12350527bb
131c50320c
14123b9183
15ab563db
hex74db6ff

122533631 has 8 divisors (see below), whose sum is σ = 134560128. Its totient is φ = 110655000.

The previous prime is 122533589. The next prime is 122533657. The reversal of 122533631 is 136335221.

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 122533631 - 210 = 122532607 is a prime.

It is a super-2 number, since 2×1225336312 = 30028981452088322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122533631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122533031) 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, 35225 + ... + 38546.

It is an arithmetic number, because the mean of its divisors is an integer number (16820016).

Almost surely, 2122533631 is an apocalyptic number.

122533631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122533631 is a deficient number, since it is larger than the sum of its proper divisors (12026497).

122533631 is a wasteful number, since it uses less digits than its factorization.

122533631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73933.

The product of its digits is 3240, while the sum is 26.

The square root of 122533631 is about 11069.4910000415. The cubic root of 122533631 is about 496.6896393940.

Adding to 122533631 its reverse (136335221), we get a palindrome (258868852).

The spelling of 122533631 in words is "one hundred twenty-two million, five hundred thirty-three thousand, six hundred thirty-one".

Divisors: 1 11 151 1661 73771 811481 11139421 122533631