Search a number
-
+
31422230243101 = 373977422920389
BaseRepresentation
bin1110010010100000011101…
…10111110010011100011101
311010020221021020210220121001
413021100032313302130131
513104310211420234401
6150455101233110301
76422116105112515
oct711201667623435
9133227236726531
1031422230243101
11a015102883a85
123635a093b8391
13146c1467b0c09
147a8bb614c845
1539756e897601
hex1c940edf271d

31422230243101 has 16 divisors (see below), whose sum is σ = 31547725268400. Its totient is φ = 31296974865408.

The previous prime is 31422230243087. The next prime is 31422230243123. The reversal of 31422230243101 is 10134203222413.

It can be written as a sum of positive squares in 8 ways, for example, as 20359488598201 + 11062741644900 = 4512149^2 + 3326070^2 .

It is a cyclic number.

It is not a de Polignac number, because 31422230243101 - 215 = 31422230210333 is a prime.

It is a super-2 number, since 2×314222302431012 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31422230243101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422230243141) 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, 1541126215 + ... + 1541146603.

It is an arithmetic number, because the mean of its divisors is an integer number (1971732829275).

Almost surely, 231422230243101 is an apocalyptic number.

It is an amenable number.

31422230243101 is a deficient number, since it is larger than the sum of its proper divisors (125495025299).

31422230243101 is a wasteful number, since it uses less digits than its factorization.

31422230243101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25968.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31422230243101 its reverse (10134203222413), we get a palindrome (41556433465514).

The spelling of 31422230243101 in words is "thirty-one trillion, four hundred twenty-two billion, two hundred thirty million, two hundred forty-three thousand, one hundred one".

Divisors: 1 373 977 4229 20389 364421 1577417 4131733 7605097 19920053 86225081 1541136409 7430179769 32161955213 84241904137 31422230243101