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26972051 = 43627257
BaseRepresentation
bin110011011100…
…0111110010011
31212202022200212
41212320332103
523401101201
62402034335
7445154501
oct146707623
955668625
1026972051
1114252557
1290489ab
1357849c2
143821671
15257babb
hex19b8f93

26972051 has 4 divisors (see below), whose sum is σ = 27599352. Its totient is φ = 26344752.

The previous prime is 26972041. The next prime is 26972069. The reversal of 26972051 is 15027962.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15027962 = 27513981.

It is a cyclic number.

It is not a de Polignac number, because 26972051 - 214 = 26955667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26971999 and 26972017.

It is not an unprimeable number, because it can be changed into a prime (26972021) 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, 313586 + ... + 313671.

It is an arithmetic number, because the mean of its divisors is an integer number (6899838).

Almost surely, 226972051 is an apocalyptic number.

26972051 is a deficient number, since it is larger than the sum of its proper divisors (627301).

26972051 is an equidigital number, since it uses as much as digits as its factorization.

26972051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627300.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 26972051 is about 5193.4623325870. The cubic root of 26972051 is about 299.8964494469.

The spelling of 26972051 in words is "twenty-six million, nine hundred seventy-two thousand, fifty-one".

Divisors: 1 43 627257 26972051