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9912311001 = 3219203928429
BaseRepresentation
bin10010011101101000…
…11101110011011001
3221120210202120102200
421032310131303121
5130300022423001
64315331120413
7500431152615
oct111664356331
927523676380
109912311001
114227271a6a
121b07743109
13c1c7973a8
146a0658345
153d033b086
hex24ed1dcd9

9912311001 has 24 divisors (see below), whose sum is σ = 15079272000. Its totient is φ = 6257116512.

The previous prime is 9912310927. The next prime is 9912311021. The reversal of 9912311001 is 1001132199.

It is not a de Polignac number, because 9912311001 - 27 = 9912310873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9912311021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334455 + ... + 362883.

It is an arithmetic number, because the mean of its divisors is an integer number (628303000).

Almost surely, 29912311001 is an apocalyptic number.

It is an amenable number.

9912311001 is a deficient number, since it is larger than the sum of its proper divisors (5166960999).

9912311001 is a wasteful number, since it uses less digits than its factorization.

9912311001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30493 (or 30490 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 9912311001 is about 99560.5895974908. The cubic root of 9912311001 is about 2148.1188522035.

The spelling of 9912311001 in words is "nine billion, nine hundred twelve million, three hundred eleven thousand, one".

Divisors: 1 3 9 19 57 171 2039 6117 18351 28429 38741 85287 116223 255861 348669 540151 1620453 4861359 57966731 173900193 521700579 1101367889 3304103667 9912311001