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122520606 = 23132120829
BaseRepresentation
bin1110100110110…
…00010000011110
322112112200200020
413103120100132
5222331124411
620054013010
73015256635
oct723302036
9275480606
10122520606
11631835aa
1235047166
131c4ca300
14123b451c
15ab52606
hex74d841e

122520606 has 24 divisors (see below), whose sum is σ = 265342680. Its totient is φ = 37698336.

The previous prime is 122520599. The next prime is 122520613. The reversal of 122520606 is 606025221.

It is an interprime number because it is at equal distance from previous prime (122520599) and next prime (122520613).

It is a super-2 number, since 2×1225206062 = 30022597789214472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59401 + ... + 61428.

It is an arithmetic number, because the mean of its divisors is an integer number (11055945).

Almost surely, 2122520606 is an apocalyptic number.

122520606 is an abundant number, since it is smaller than the sum of its proper divisors (142822074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122520606 is a wasteful number, since it uses less digits than its factorization.

122520606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120860 (or 120847 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 122520606 is about 11068.9026556385. The cubic root of 122520606 is about 496.6720398400.

Adding to 122520606 its reverse (606025221), we get a palindrome (728545827).

The spelling of 122520606 in words is "one hundred twenty-two million, five hundred twenty thousand, six hundred six".

Divisors: 1 2 3 6 13 26 39 78 169 338 507 1014 120829 241658 362487 724974 1570777 3141554 4712331 9424662 20420101 40840202 61260303 122520606