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1013440233 = 31327793811
BaseRepresentation
bin111100011001111…
…101111011101001
32121121222002122110
4330121331323221
54033420041413
6244321312533
734054046151
oct7431757351
92547862573
101013440233
11480073713
12243495749
13131c648a0
1498849761
155de888c3
hex3c67dee9

1013440233 has 16 divisors (see below), whose sum is σ = 1460465216. Its totient is φ = 621397440.

The previous prime is 1013440231. The next prime is 1013440279. The reversal of 1013440233 is 3320443101.

It is not a de Polignac number, because 1013440233 - 21 = 1013440231 is a prime.

It is a super-2 number, since 2×10134402332 = 2054122211726188578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013440231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36103 + ... + 57708.

It is an arithmetic number, because the mean of its divisors is an integer number (91279076).

Almost surely, 21013440233 is an apocalyptic number.

1013440233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1013440233 is a deficient number, since it is larger than the sum of its proper divisors (447024983).

1013440233 is a wasteful number, since it uses less digits than its factorization.

1013440233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94104.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1013440233 is about 31834.5760612577. The cubic root of 1013440233 is about 1004.4601551078.

Adding to 1013440233 its reverse (3320443101), we get a palindrome (4333883334).

The spelling of 1013440233 in words is "one billion, thirteen million, four hundred forty thousand, two hundred thirty-three".

Divisors: 1 3 13 39 277 831 3601 10803 93811 281433 1219543 3658629 25985647 77956941 337813411 1013440233