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10161254 = 25080627
BaseRepresentation
bin100110110000…
…110001100110
3201010020121202
4212300301212
510100130004
61001442502
7152240435
oct46606146
921106552
1010161254
115810334
1234a0432
13214a09c
1414c711c
15d5ab1e
hex9b0c66

10161254 has 4 divisors (see below), whose sum is σ = 15241884. Its totient is φ = 5080626.

The previous prime is 10161253. The next prime is 10161269. The reversal of 10161254 is 45216101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45216101 = 76459443.

It is a super-4 number, since 4×101612544 (a number of 29 digits) contains 4444 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10161251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540312 + ... + 2540315.

It is an arithmetic number, because the mean of its divisors is an integer number (3810471).

Almost surely, 210161254 is an apocalyptic number.

10161254 is a deficient number, since it is larger than the sum of its proper divisors (5080630).

10161254 is an equidigital number, since it uses as much as digits as its factorization.

10161254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080629.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 10161254 is about 3187.6721914275. The cubic root of 10161254 is about 216.5953369406.

Adding to 10161254 its reverse (45216101), we get a palindrome (55377355).

The spelling of 10161254 in words is "ten million, one hundred sixty-one thousand, two hundred fifty-four".

Divisors: 1 2 5080627 10161254