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122152090 = 2531394039
BaseRepresentation
bin1110100011111…
…10010010011010
322111211222011111
413101332102122
5222232331330
620042050534
73012163354
oct721762232
9274758144
10122152090
1162a51745
1234aa9a4a
131c3cb658
141231a0d4
15aacd32a
hex747e49a

122152090 has 16 divisors (see below), whose sum is σ = 226967040. Its totient is φ = 47284560.

The previous prime is 122152081. The next prime is 122152099. The reversal of 122152090 is 90251221.

It is an interprime number because it is at equal distance from previous prime (122152081) and next prime (122152099).

It is a super-2 number, since 2×1221520902 = 29842266182736200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122152099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196710 + ... + 197329.

It is an arithmetic number, because the mean of its divisors is an integer number (14185440).

Almost surely, 2122152090 is an apocalyptic number.

122152090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122152090 is a deficient number, since it is larger than the sum of its proper divisors (104814950).

122152090 is a wasteful number, since it uses less digits than its factorization.

122152090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394077.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 122152090 is about 11052.2436636187. The cubic root of 122152090 is about 496.1735783610.

The spelling of 122152090 in words is "one hundred twenty-two million, one hundred fifty-two thousand, ninety".

Divisors: 1 2 5 10 31 62 155 310 394039 788078 1970195 3940390 12215209 24430418 61076045 122152090