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468393390 = 232523713187
BaseRepresentation
bin11011111010110…
…001110110101110
31012122100211221100
4123322301312232
51424402042030
6114251143530
714415164253
oct3372616656
91178324840
10468393390
11220439983
12110a44ba6
1376069a6a
14462c942a
152b1c3360
hex1beb1dae

468393390 has 96 divisors (see below), whose sum is σ = 1289074176. Its totient is φ = 117754560.

The previous prime is 468393361. The next prime is 468393391. The reversal of 468393390 is 93393864.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468393391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145377 + ... + 148563.

It is an arithmetic number, because the mean of its divisors is an integer number (13427856).

Almost surely, 2468393390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 468393390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644537088).

468393390 is an abundant number, since it is smaller than the sum of its proper divisors (820680786).

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

468393390 is a wasteful number, since it uses less digits than its factorization.

468393390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294 (or 3291 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 468393390 is about 21642.3979724983. The cubic root of 468393390 is about 776.6110862578.

The spelling of 468393390 in words is "four hundred sixty-eight million, three hundred ninety-three thousand, three hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 71 90 115 138 142 207 213 230 345 355 414 426 639 690 710 1035 1065 1278 1633 2070 2130 3187 3195 3266 4899 6374 6390 8165 9561 9798 14697 15935 16330 19122 24495 28683 29394 31870 47805 48990 57366 73301 73485 95610 143415 146602 146970 219903 226277 286830 366505 439806 452554 659709 678831 733010 1099515 1131385 1319418 1357662 2036493 2199030 2262770 3298545 3394155 4072986 5204371 6597090 6788310 10182465 10408742 15613113 20364930 26021855 31226226 46839339 52043710 78065565 93678678 156131130 234196695 468393390