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472750040 = 2357334457
BaseRepresentation
bin11100001011011…
…001011111011000
31012221120012010202
4130023121133120
51432011000130
6114524401332
714500211000
oct3413313730
91187505122
10472750040
11222945114
121123a6248
1376c33a69
1446b01000
152b784145
hex1c2d97d8

472750040 has 64 divisors (see below), whose sum is σ = 1240488000. Its totient is φ = 162081024.

The previous prime is 472750037. The next prime is 472750043. The reversal of 472750040 is 40057274.

It is an interprime number because it is at equal distance from previous prime (472750037) and next prime (472750043).

It is a junction number, because it is equal to n+sod(n) for n = 472749985 and 472750012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472750043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3509 + ... + 30948.

It is an arithmetic number, because the mean of its divisors is an integer number (19382625).

Almost surely, 2472750040 is an apocalyptic number.

472750040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472750040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620244000).

472750040 is an abundant number, since it is smaller than the sum of its proper divisors (767737960).

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

472750040 is a wasteful number, since it uses less digits than its factorization.

472750040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34489 (or 34471 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 472750040 is about 21742.8158250030. The cubic root of 472750040 is about 779.0114805976.

The spelling of 472750040 in words is "four hundred seventy-two million, seven hundred fifty thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 343 392 490 686 980 1372 1715 1960 2744 3430 6860 13720 34457 68914 137828 172285 241199 275656 344570 482398 689140 964796 1205995 1378280 1688393 1929592 2411990 3376786 4823980 6753572 8441965 9647960 11818751 13507144 16883930 23637502 33767860 47275004 59093755 67535720 94550008 118187510 236375020 472750040