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2240131 = 2397397
BaseRepresentation
bin1000100010111010000011
311012210212211
420202322003
51033141011
6120002551
725016665
oct10427203
94183784
102240131
1112a0053
12900457
1360582a
14424535
152e3b21
hex222e83

2240131 has 4 divisors (see below), whose sum is σ = 2337552. Its totient is φ = 2142712.

The previous prime is 2240113. The next prime is 2240137. The reversal of 2240131 is 1310422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310422 = 2655211.

It is a cyclic number.

It is not a de Polignac number, because 2240131 - 27 = 2240003 is a prime.

It is a super-2 number, since 2×22401312 = 10036373794322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2240137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48676 + ... + 48721.

It is an arithmetic number, because the mean of its divisors is an integer number (584388).

22240131 is an apocalyptic number.

2240131 is a deficient number, since it is larger than the sum of its proper divisors (97421).

2240131 is an equidigital number, since it uses as much as digits as its factorization.

2240131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97420.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2240131 is about 1496.7067180981. The cubic root of 2240131 is about 130.8452030107.

Adding to 2240131 its reverse (1310422), we get a palindrome (3550553).

It can be divided in two parts, 22401 and 31, that multiplied together give a triangular number (694431 = T1178).

The spelling of 2240131 in words is "two million, two hundred forty thousand, one hundred thirty-one".

Divisors: 1 23 97397 2240131