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122156060 = 22513895279
BaseRepresentation
bin1110100011111…
…11010000011100
322111212011121112
413101333100130
5222232443220
620042121152
73012211055
oct721772034
9274764545
10122156060
1162a54724
1234ab01b8
131c4003c0
141231b72c
15aace5c5
hex747f41c

122156060 has 48 divisors (see below), whose sum is σ = 279417600. Its totient is φ = 44588544.

The previous prime is 122156053. The next prime is 122156063. The reversal of 122156060 is 60651221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122156063) 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, 20501 + ... + 25779.

It is an arithmetic number, because the mean of its divisors is an integer number (5821200).

Almost surely, 2122156060 is an apocalyptic number.

122156060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122156060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139708800).

122156060 is an abundant number, since it is smaller than the sum of its proper divisors (157261540).

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

122156060 is a wasteful number, since it uses less digits than its factorization.

122156060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390 (or 5388 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 122156060 is about 11052.4232637010. The cubic root of 122156060 is about 496.1789535938.

The spelling of 122156060 in words is "one hundred twenty-two million, one hundred fifty-six thousand, sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 89 130 178 260 356 445 890 1157 1780 2314 4628 5279 5785 10558 11570 21116 23140 26395 52790 68627 105580 137254 274508 343135 469831 686270 939662 1372540 1879324 2349155 4698310 6107803 9396620 12215606 24431212 30539015 61078030 122156060