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2312301988 = 2217257132313
BaseRepresentation
bin1000100111010010…
…1110110110100100
312222011000010000101
42021310232312210
514213422130423
61021240353444
7111205146133
oct21164566644
95864003011
102312301988
11a87263787
12546475884
132ab091739
1417d15191a
15d80017ad
hex89d2eda4

2312301988 has 24 divisors (see below), whose sum is σ = 4301263512. Its totient is φ = 1083899904.

The previous prime is 2312301983. The next prime is 2312301989. The reversal of 2312301988 is 8891032132.

2312301988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1013276224 + 1299025764 = 31832^2 + 36042^2 .

It is a super-5 number, since 5×23123019885 (a number of 48 digits) contains 55555 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2312301983) 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, 48681 + ... + 83632.

It is an arithmetic number, because the mean of its divisors is an integer number (179219313).

Almost surely, 22312301988 is an apocalyptic number.

It is an amenable number.

2312301988 is a deficient number, since it is larger than the sum of its proper divisors (1988961524).

2312301988 is a wasteful number, since it uses less digits than its factorization.

2312301988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132591 (or 132589 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2312301988 is about 48086.4012793638. The cubic root of 2312301988 is about 1322.3553729944.

The spelling of 2312301988 in words is "two billion, three hundred twelve million, three hundred one thousand, nine hundred eighty-eight".

Divisors: 1 2 4 17 34 68 257 514 1028 4369 8738 17476 132313 264626 529252 2249321 4498642 8997284 34004441 68008882 136017764 578075497 1156150994 2312301988