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460993780 = 225131919283
BaseRepresentation
bin11011011110100…
…011010011110100
31012010102220120201
4123132203103310
51421003300110
6113424410244
714265245122
oct3336432364
91163386521
10460993780
112172454a5
1210a476984
13746789b0
1445320912
152a710b3a
hex1b7a34f4

460993780 has 48 divisors (see below), whose sum is σ = 1048126464. Its totient is φ = 169303680.

The previous prime is 460993769. The next prime is 460993781. The reversal of 460993780 is 87399064.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 460993780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (460993781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45019 + ... + 54301.

It is an arithmetic number, because the mean of its divisors is an integer number (21835968).

Almost surely, 2460993780 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 460993780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524063232).

460993780 is an abundant number, since it is smaller than the sum of its proper divisors (587132684).

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

460993780 is a wasteful number, since it uses less digits than its factorization.

460993780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9496 (or 9494 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 460993780 is about 21470.7657059547. The cubic root of 460993780 is about 772.4997636527.

It can be divided in two parts, 4609 and 93780, that added together give a palindrome (98389).

The spelling of 460993780 in words is "four hundred sixty million, nine hundred ninety-three thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 191 260 382 764 955 1910 2483 3820 4966 9283 9932 12415 18566 24830 37132 46415 49660 92830 120679 185660 241358 482716 603395 1206790 1773053 2413580 3546106 7092212 8865265 17730530 23049689 35461060 46099378 92198756 115248445 230496890 460993780