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122020074 = 23311205421
BaseRepresentation
bin1110100010111…
…10000011101010
322111121021002000
413101132003222
5222214120244
620035151430
73011103441
oct721360352
9274537060
10122020074
1162971540
1234a45576
131c383537
14122c3d58
15aaa4169
hex745e0ea

122020074 has 32 divisors (see below), whose sum is σ = 295807680. Its totient is φ = 36975600.

The previous prime is 122020051. The next prime is 122020079. The reversal of 122020074 is 470020221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122020079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102117 + ... + 103304.

It is an arithmetic number, because the mean of its divisors is an integer number (9243990).

Almost surely, 2122020074 is an apocalyptic number.

122020074 is an abundant number, since it is smaller than the sum of its proper divisors (173787606).

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

122020074 is a wasteful number, since it uses less digits than its factorization.

122020074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205443 (or 205437 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 122020074 is about 11046.2696870935. The cubic root of 122020074 is about 495.9947672228.

Adding to 122020074 its reverse (470020221), we get a palindrome (592040295).

The spelling of 122020074 in words is "one hundred twenty-two million, twenty thousand, seventy-four".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 205421 410842 616263 1232526 1848789 2259631 3697578 4519262 5546367 6778893 11092734 13557786 20336679 40673358 61010037 122020074