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123272030 = 2571761029
BaseRepresentation
bin1110101100011…
…11101101011110
322120221212102202
413112033231132
5223024201110
620122051502
73024536450
oct726175536
9276855382
10123272030
1163647112
1235349b92
131c70133b
141252c2d0
15ac500a5
hex758fb5e

123272030 has 16 divisors (see below), whose sum is σ = 253588320. Its totient is φ = 42264672.

The previous prime is 123272029. The next prime is 123272047. The reversal of 123272030 is 30272321.

It is a junction number, because it is equal to n+sod(n) for n = 123271993 and 123272011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880445 + ... + 880584.

It is an arithmetic number, because the mean of its divisors is an integer number (15849270).

Almost surely, 2123272030 is an apocalyptic number.

123272030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123272030 is an abundant number, since it is smaller than the sum of its proper divisors (130316290).

123272030 is a wasteful number, since it uses less digits than its factorization.

123272030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761043.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 123272030 is about 11102.7937925551. The cubic root of 123272030 is about 497.6853412445.

The spelling of 123272030 in words is "one hundred twenty-three million, two hundred seventy-two thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 1761029 3522058 8805145 12327203 17610290 24654406 61636015 123272030