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1230125193 = 321126594673
BaseRepresentation
bin100100101010010…
…0011100010001001
310011201200211112100
41021110203202021
510004403001233
6322021504013
742324614553
oct11124434211
93151624470
101230125193
115814122a0
122a3b72009
13167b1143b
14b95324d3
1572edb813
hex49523889

1230125193 has 24 divisors (see below), whose sum is σ = 1939523040. Its totient is φ = 745090560.

The previous prime is 1230125137. The next prime is 1230125243. The reversal of 1230125193 is 3915210321.

It is not a de Polignac number, because 1230125193 - 212 = 1230121097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230125893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260905 + ... + 265577.

It is an arithmetic number, because the mean of its divisors is an integer number (80813460).

Almost surely, 21230125193 is an apocalyptic number.

It is an amenable number.

1230125193 is a deficient number, since it is larger than the sum of its proper divisors (709397847).

1230125193 is a wasteful number, since it uses less digits than its factorization.

1230125193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7349 (or 7346 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 1230125193 is about 35073.1406207086. The cubic root of 1230125193 is about 1071.4776199336.

The spelling of 1230125193 in words is "one billion, two hundred thirty million, one hundred twenty-five thousand, one hundred ninety-three".

Divisors: 1 3 9 11 33 99 2659 4673 7977 14019 23931 29249 42057 51403 87747 154209 263241 462627 12425507 37276521 111829563 136680577 410041731 1230125193