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2265431 = 72314071
BaseRepresentation
bin1000101001000101010111
311021002120212
420221011113
51034443211
6120320035
725153520
oct10510527
94232525
102265431
111308063
1291301b
136141bc
1442d847
152eb38b
hex229157

2265431 has 8 divisors (see below), whose sum is σ = 2701824. Its totient is φ = 1857240.

The previous prime is 2265421. The next prime is 2265433. The reversal of 2265431 is 1345622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-2265431 is a prime.

It is a super-2 number, since 2×22654312 = 10264355231522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2265397 and 2265406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265433) 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, 6875 + ... + 7196.

It is an arithmetic number, because the mean of its divisors is an integer number (337728).

22265431 is an apocalyptic number.

2265431 is a deficient number, since it is larger than the sum of its proper divisors (436393).

2265431 is a wasteful number, since it uses less digits than its factorization.

2265431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14101.

The product of its digits is 1440, while the sum is 23.

The square root of 2265431 is about 1505.1348776771. The cubic root of 2265431 is about 131.3359479382.

The spelling of 2265431 in words is "two million, two hundred sixty-five thousand, four hundred thirty-one".

Divisors: 1 7 23 161 14071 98497 323633 2265431