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122115030 = 2357157331
BaseRepresentation
bin1110100011101…
…01001111010110
322111210002022220
413101311033112
5222230140110
620041203210
73011650332
oct721651726
9274702286
10122115030
1162a26914
1234a90506
131c3b781b
141230a7c2
15aac2370
hex74753d6

122115030 has 32 divisors (see below), whose sum is σ = 297209088. Its totient is φ = 32104800.

The previous prime is 122115001. The next prime is 122115043. The reversal of 122115030 is 30511221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26536 + ... + 30795.

It is an arithmetic number, because the mean of its divisors is an integer number (9287784).

Almost surely, 2122115030 is an apocalyptic number.

122115030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122115030 is an abundant number, since it is smaller than the sum of its proper divisors (175094058).

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

122115030 is a wasteful number, since it uses less digits than its factorization.

122115030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57412.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 122115030 is about 11050.5669537811. The cubic root of 122115030 is about 496.1233948759.

Adding to 122115030 its reverse (30511221), we get a palindrome (152626251).

The spelling of 122115030 in words is "one hundred twenty-two million, one hundred fifteen thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 57331 114662 171993 286655 343986 573310 859965 1719930 4070501 8141002 12211503 20352505 24423006 40705010 61057515 122115030