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472986220 = 225723115569
BaseRepresentation
bin11100001100010…
…011001001101100
31012222000012010011
4130030103021230
51432041024340
6114533423004
714502213400
oct3414231154
91188005104
10472986220
11222a96603
1211249aa64
1376cb7405
1446b63100
152b7ce0ea
hex1c31326c

472986220 has 72 divisors (see below), whose sum is σ = 1192786560. Its totient is φ = 156925440.

The previous prime is 472986211. The next prime is 472986287. The reversal of 472986220 is 22689274.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22596 + ... + 38164.

It is an arithmetic number, because the mean of its divisors is an integer number (16566480).

Almost surely, 2472986220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472986220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596393280).

472986220 is an abundant number, since it is smaller than the sum of its proper divisors (719800340).

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

472986220 is a wasteful number, since it uses less digits than its factorization.

472986220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15623 (or 15614 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 472986220 is about 21748.2463660866. The cubic root of 472986220 is about 779.1411871269.

The spelling of 472986220 in words is "four hundred seventy-two million, nine hundred eighty-six thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 49 62 70 98 124 140 155 196 217 245 310 434 490 620 868 980 1085 1519 2170 3038 4340 6076 7595 15190 15569 30380 31138 62276 77845 108983 155690 217966 311380 435932 482639 544915 762881 965278 1089830 1525762 1930556 2179660 2413195 3051524 3378473 3814405 4826390 6756946 7628810 9652780 13513892 15257620 16892365 23649311 33784730 47298622 67569460 94597244 118246555 236493110 472986220