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472223148 = 22339351929
BaseRepresentation
bin11100001001011…
…000110110101100
31012220120102101020
4130021120312230
51431342120043
6114505214140
714462554605
oct3411306654
91186512336
10472223148
11222615271
12112191350
1376aaaca7
1446a04dac
152b6cce83
hex1c258dac

472223148 has 12 divisors (see below), whose sum is σ = 1101854040. Its totient is φ = 157407712.

The previous prime is 472223123. The next prime is 472223149. The reversal of 472223148 is 841322274.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (472223149) 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, 19675953 + ... + 19675976.

It is an arithmetic number, because the mean of its divisors is an integer number (91821170).

Almost surely, 2472223148 is an apocalyptic number.

It is an amenable number.

472223148 is an abundant number, since it is smaller than the sum of its proper divisors (629630892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

472223148 is a wasteful number, since it uses less digits than its factorization.

472223148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39351936 (or 39351934 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 472223148 is about 21730.6959851727. The cubic root of 472223148 is about 778.7219636124.

The spelling of 472223148 in words is "four hundred seventy-two million, two hundred twenty-three thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 39351929 78703858 118055787 157407716 236111574 472223148