Search a number
-
+
10987397 = 67163991
BaseRepresentation
bin101001111010…
…011110000101
3202200012212122
4221322132011
510303044042
61031255325
7162251141
oct51723605
922605778
1010987397
116224aa3
12381a545
132379125
141660221
15e707d2
hexa7a785

10987397 has 4 divisors (see below), whose sum is σ = 11151456. Its totient is φ = 10823340.

The previous prime is 10987391. The next prime is 10987411. The reversal of 10987397 is 79378901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10987397 - 214 = 10971013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10987391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81929 + ... + 82062.

It is an arithmetic number, because the mean of its divisors is an integer number (2787864).

Almost surely, 210987397 is an apocalyptic number.

It is an amenable number.

10987397 is a deficient number, since it is larger than the sum of its proper divisors (164059).

10987397 is an equidigital number, since it uses as much as digits as its factorization.

10987397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164058.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 10987397 is about 3314.7242720926. The cubic root of 10987397 is about 222.3130407770.

The spelling of 10987397 in words is "ten million, nine hundred eighty-seven thousand, three hundred ninety-seven".

Divisors: 1 67 163991 10987397