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23021097 = 311263419
BaseRepresentation
bin101011111010…
…0011000101001
31121022121000020
41113310120221
521343133342
62141231053
7366450621
oct127643051
947277006
1023021097
1111aa4100
127862489
134a00568
1430b3881
15204b0ec
hex15f4629

23021097 has 12 divisors (see below), whose sum is σ = 33739440. Its totient is φ = 13951960.

The previous prime is 23021093. The next prime is 23021101. The reversal of 23021097 is 79012032.

It is an interprime number because it is at equal distance from previous prime (23021093) and next prime (23021101).

It is not a de Polignac number, because 23021097 - 22 = 23021093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23021093) 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 11 ways as a sum of consecutive naturals, for example, 31347 + ... + 32072.

It is an arithmetic number, because the mean of its divisors is an integer number (2811620).

Almost surely, 223021097 is an apocalyptic number.

It is an amenable number.

23021097 is a deficient number, since it is larger than the sum of its proper divisors (10718343).

23021097 is a wasteful number, since it uses less digits than its factorization.

23021097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63444 (or 63433 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 23021097 is about 4798.0305334585. The cubic root of 23021097 is about 284.4736236760.

The spelling of 23021097 in words is "twenty-three million, twenty-one thousand, ninety-seven".

Divisors: 1 3 11 33 121 363 63419 190257 697609 2092827 7673699 23021097