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22348521031 = 191176237949
BaseRepresentation
bin10100110100000100…
…110101111001000111
32010200111200111110011
4110310010311321013
5331232210133111
614133342211051
71420550202664
oct246404657107
963614614404
1022348521031
1195291806a1
1243b8583a87
13215210ac55
141120184a6b
158ac024021
hex534135e47

22348521031 has 4 divisors (see below), whose sum is σ = 23524759000. Its totient is φ = 21172283064.

The previous prime is 22348520983. The next prime is 22348521043. The reversal of 22348521031 is 13012584322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13012584322 = 26506292161.

It is a cyclic number.

It is not a de Polignac number, because 22348521031 - 27 = 22348520903 is a prime.

It is a super-2 number, since 2×223485210312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22348520984 and 22348521002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22348521631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588118956 + ... + 588118993.

It is an arithmetic number, because the mean of its divisors is an integer number (5881189750).

Almost surely, 222348521031 is an apocalyptic number.

22348521031 is a deficient number, since it is larger than the sum of its proper divisors (1176237969).

22348521031 is a wasteful number, since it uses less digits than its factorization.

22348521031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176237968.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 22348521031 in words is "twenty-two billion, three hundred forty-eight million, five hundred twenty-one thousand, thirty-one".

Divisors: 1 19 1176237949 22348521031