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122535530 = 25132933217
BaseRepresentation
bin1110100110110…
…11111001101010
322112120110010222
413103123321222
5222332114110
620054210042
73015351305
oct723337152
9275513128
10122535530
1163193837
1235053922
131c504040
14123b9b3c
15ab56c55
hex74dbe6a

122535530 has 32 divisors (see below), whose sum is σ = 238415184. Its totient is φ = 45075456.

The previous prime is 122535463. The next prime is 122535551. The reversal of 122535530 is 35535221.

It can be written as a sum of positive squares in 8 ways, for example, as 89851441 + 32684089 = 9479^2 + 5717^2 .

It is a super-2 number, since 2×1225355302 = 30029912224761800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 122535530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36482 + ... + 39698.

Almost surely, 2122535530 is an apocalyptic number.

122535530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122535530 is a deficient number, since it is larger than the sum of its proper divisors (115879654).

122535530 is a wasteful number, since it uses less digits than its factorization.

122535530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 122535530 is about 11069.5767760109. The cubic root of 122535530 is about 496.6922052440.

The spelling of 122535530 in words is "one hundred twenty-two million, five hundred thirty-five thousand, five hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 293 586 1465 2930 3217 3809 6434 7618 16085 19045 32170 38090 41821 83642 209105 418210 942581 1885162 4712905 9425810 12253553 24507106 61267765 122535530