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123280252 = 22127924097
BaseRepresentation
bin1110101100100…
…01101101111100
322120222021201021
413112101231330
5223024432002
620122153524
73024602434
oct726215574
9276867637
10123280252
1163652307
12353528a4
131c704cc4
14125312c4
15ac52737
hex7591b7c

123280252 has 12 divisors (see below), whose sum is σ = 215918080. Its totient is φ = 61589376.

The previous prime is 123280249. The next prime is 123280271. The reversal of 123280252 is 252082321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6933 + ... + 17164.

Almost surely, 2123280252 is an apocalyptic number.

It is an amenable number.

123280252 is a deficient number, since it is larger than the sum of its proper divisors (92637828).

123280252 is a wasteful number, since it uses less digits than its factorization.

123280252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25380 (or 25378 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 123280252 is about 11103.1640535480. The cubic root of 123280252 is about 497.6964058737.

The spelling of 123280252 in words is "one hundred twenty-three million, two hundred eighty thousand, two hundred fifty-two".

Divisors: 1 2 4 1279 2558 5116 24097 48194 96388 30820063 61640126 123280252