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472192900 = 2252412532
BaseRepresentation
bin11100001001010…
…001011110000100
31012220111212212221
4130021101132010
51431340133100
6114504422124
714462400454
oct3411213604
91186455787
10472192900
112225a4573
12112177944
1376a9a2aa
14469d7d64
152b6c401a
hex1c251784

472192900 has 81 divisors (see below), whose sum is σ = 1070449933. Its totient is φ = 180793600.

The previous prime is 472192849. The next prime is 472192909. The reversal of 472192900 is 9291274.

It is a happy number.

The square root of 472192900 is 21730.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 428738436 + 43454464 = 20706^2 + 6592^2 .

It is a super-2 number, since 2×4721929002 = 445932269620820000, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472192909) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8909274 + ... + 8909326.

Almost surely, 2472192900 is an apocalyptic number.

472192900 is the 21730-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472192900

472192900 is an abundant number, since it is smaller than the sum of its proper divisors (598257033).

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

472192900 is a wasteful number, since it uses less digits than its factorization.

472192900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The cubic root of 472192900 is about 778.7053363850.

The spelling of 472192900 in words is "four hundred seventy-two million, one hundred ninety-two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 41 50 53 82 100 106 164 205 212 265 410 530 820 1025 1060 1325 1681 2050 2173 2650 2809 3362 4100 4346 5300 5618 6724 8405 8692 10865 11236 14045 16810 21730 28090 33620 42025 43460 54325 56180 70225 84050 89093 108650 115169 140450 168100 178186 217300 230338 280900 356372 445465 460676 575845 890930 1151690 1781860 2227325 2303380 2879225 4454650 4721929 5758450 8909300 9443858 11516900 18887716 23609645 47219290 94438580 118048225 236096450 472192900