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22940364974 = 211470182487
BaseRepresentation
bin10101010111010110…
…100011000010101110
32012012202100021201012
4111113112203002232
5333440213134344
614312203345222
71441324612352
oct252726430256
965182307635
1022940364974
11980226881a
124542822212
13221790c377
141178a07462
158e3e8029e
hex5575a30ae

22940364974 has 4 divisors (see below), whose sum is σ = 34410547464. Its totient is φ = 11470182486.

The previous prime is 22940364971. The next prime is 22940364991. The reversal of 22940364974 is 47946304922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47946304922 = 223973152461.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940364971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5735091242 + ... + 5735091245.

It is an arithmetic number, because the mean of its divisors is an integer number (8602636866).

Almost surely, 222940364974 is an apocalyptic number.

22940364974 is a deficient number, since it is larger than the sum of its proper divisors (11470182490).

22940364974 is a wasteful number, since it uses less digits than its factorization.

22940364974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11470182489.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 22940364974 in words is "twenty-two billion, nine hundred forty million, three hundred sixty-four thousand, nine hundred seventy-four".

Divisors: 1 2 11470182487 22940364974