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660022052 = 221087151799
BaseRepresentation
bin100111010101110…
…010001100100100
31200222221121001012
4213111302030210
52322431201202
6145254321352
722233044354
oct4725621444
91628847035
10660022052
11309624378
12165059258
13a69828c1
146392cb64
153ce27152
hex27572324

660022052 has 12 divisors (see below), whose sum is σ = 1156108800. Its totient is φ = 329705256.

The previous prime is 660021997. The next prime is 660022079. The reversal of 660022052 is 250220066.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71552 + ... + 80247.

It is an arithmetic number, because the mean of its divisors is an integer number (96342400).

Almost surely, 2660022052 is an apocalyptic number.

It is an amenable number.

660022052 is a deficient number, since it is larger than the sum of its proper divisors (496086748).

660022052 is a wasteful number, since it uses less digits than its factorization.

660022052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152890 (or 152888 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 660022052 is about 25690.8943402132. The cubic root of 660022052 is about 870.6684658615.

The spelling of 660022052 in words is "six hundred sixty million, twenty-two thousand, fifty-two".

Divisors: 1 2 4 1087 2174 4348 151799 303598 607196 165005513 330011026 660022052