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1151100012 = 223618917669
BaseRepresentation
bin100010010011100…
…0110010001101100
32222012222221100210
41010213012101230
54324140200022
6310120022420
740345121466
oct10447062154
92865887323
101151100012
11540847527
12281601a10
1315463298a
14acc41136
156b0cba0c
hex449c646c

1151100012 has 48 divisors (see below), whose sum is σ = 2760760800. Its totient is φ = 373148160.

The previous prime is 1151100001. The next prime is 1151100023. The reversal of 1151100012 is 2100011511.

It is an interprime number because it is at equal distance from previous prime (1151100001) and next prime (1151100023).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56314 + ... + 73982.

It is an arithmetic number, because the mean of its divisors is an integer number (57515850).

Almost surely, 21151100012 is an apocalyptic number.

1151100012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1151100012 is an abundant number, since it is smaller than the sum of its proper divisors (1609660788).

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

1151100012 is a wasteful number, since it uses less digits than its factorization.

1151100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17826 (or 17824 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 1151100012 is about 33927.8648311384. The cubic root of 1151100012 is about 1048.0234963071.

Adding to 1151100012 its reverse (2100011511), we get a palindrome (3251111523).

The spelling of 1151100012 in words is "one billion, one hundred fifty-one million, one hundred thousand, twelve".

Divisors: 1 2 3 4 6 12 61 89 122 178 183 244 267 356 366 534 732 1068 5429 10858 16287 17669 21716 32574 35338 53007 65148 70676 106014 212028 1077809 1572541 2155618 3145082 3233427 4311236 4717623 6290164 6466854 9435246 12933708 18870492 95925001 191850002 287775003 383700004 575550006 1151100012