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122130030 = 23511370091
BaseRepresentation
bin1110100011110…
…00111001101110
322111210211220110
413101320321232
5222231130110
620041400450
73012042141
oct721707156
9274724813
10122130030
1162a37110
1234a99126
131c3c15b9
1412312058
15aac6a20
hex7478e6e

122130030 has 32 divisors (see below), whose sum is σ = 319759488. Its totient is φ = 29607200.

The previous prime is 122129963. The next prime is 122130037. The reversal of 122130030 is 30031221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122129988 and 122130015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122130037) 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, 184716 + ... + 185375.

It is an arithmetic number, because the mean of its divisors is an integer number (9992484).

Almost surely, 2122130030 is an apocalyptic number.

122130030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122130030 is an abundant number, since it is smaller than the sum of its proper divisors (197629458).

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

122130030 is a wasteful number, since it uses less digits than its factorization.

122130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370112.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 122130030 is about 11051.2456311495. The cubic root of 122130030 is about 496.1437078170.

Adding to 122130030 its reverse (30031221), we get a palindrome (152161251).

The spelling of 122130030 in words is "one hundred twenty-two million, one hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 370091 740182 1110273 1850455 2220546 3700910 4071001 5551365 8142002 11102730 12213003 20355005 24426006 40710010 61065015 122130030