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212957468 = 22199926633
BaseRepresentation
bin11001011000101…
…11100100011100
3112211201100201122
430230113210130
5414004114333
633044230112
75164052153
oct1454274434
9484640648
10212957468
11aa233109
125b39b338
1335173049
14203d659a
1513a68798
hexcb1791c

212957468 has 12 divisors (see below), whose sum is σ = 372876000. Its totient is φ = 106421472.

The previous prime is 212957467. The next prime is 212957489. The reversal of 212957468 is 864759212.

It is a happy number.

212957468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212957461) 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, 5321 + ... + 21312.

It is an arithmetic number, because the mean of its divisors is an integer number (31073000).

Almost surely, 2212957468 is an apocalyptic number.

It is an amenable number.

212957468 is a deficient number, since it is larger than the sum of its proper divisors (159918532).

212957468 is a wasteful number, since it uses less digits than its factorization.

212957468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28636 (or 28634 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 212957468 is about 14593.0623242690. The cubic root of 212957468 is about 597.1695089385.

The spelling of 212957468 in words is "two hundred twelve million, nine hundred fifty-seven thousand, four hundred sixty-eight".

Divisors: 1 2 4 1999 3998 7996 26633 53266 106532 53239367 106478734 212957468