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1122012031 = 71391153147
BaseRepresentation
bin100001011100000…
…1000101101111111
32220012021010011011
41002320020231333
54244213341111
6303200340051
736542642050
oct10270105577
92805233134
101122012031
1152638a278
12273914627
1314b5b9b5a
14a902c727
1568783021
hex42e08b7f

1122012031 has 8 divisors (see below), whose sum is σ = 1291525760. Its totient is φ = 954804888.

The previous prime is 1122012007. The next prime is 1122012037. The reversal of 1122012031 is 1302102211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122012031 - 27 = 1122011903 is a prime.

It is a super-2 number, since 2×11220120312 = 2517821995417489922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122012037) 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, 575601 + ... + 577546.

It is an arithmetic number, because the mean of its divisors is an integer number (161440720).

Almost surely, 21122012031 is an apocalyptic number.

1122012031 is a deficient number, since it is larger than the sum of its proper divisors (169513729).

1122012031 is a wasteful number, since it uses less digits than its factorization.

1122012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153293.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1122012031 is about 33496.4480355754. The cubic root of 1122012031 is about 1039.1203209180.

Adding to 1122012031 its reverse (1302102211), we get a palindrome (2424114242).

The spelling of 1122012031 in words is "one billion, one hundred twenty-two million, twelve thousand, thirty-one".

Divisors: 1 7 139 973 1153147 8072029 160287433 1122012031