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5145630420 = 2235712251501
BaseRepresentation
bin1001100101011010…
…00001011011010100
3111021121102002221110
410302231001123110
541014240133140
62210332415020
7241341064650
oct46255013324
914247362843
105145630420
112200635327
12bb7317470
1364008a938
1436b56da60
15201b21380
hex132b416d4

5145630420 has 48 divisors (see below), whose sum is σ = 16466018688. Its totient is φ = 1176144000.

The previous prime is 5145630379. The next prime is 5145630433. The reversal of 5145630420 is 240365415.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6125331 + ... + 6126170.

It is an arithmetic number, because the mean of its divisors is an integer number (343042056).

Almost surely, 25145630420 is an apocalyptic number.

It is an amenable number.

5145630420 is an abundant number, since it is smaller than the sum of its proper divisors (11320388268).

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

5145630420 is a wasteful number, since it uses less digits than its factorization.

5145630420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12251520 (or 12251518 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 5145630420 is about 71733.0497051394. The cubic root of 5145630420 is about 1726.4189593292.

Adding to 5145630420 its reverse (240365415), we get a palindrome (5385995835).

The spelling of 5145630420 in words is "five billion, one hundred forty-five million, six hundred thirty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 12251501 24503002 36754503 49006004 61257505 73509006 85760507 122515010 147018012 171521014 183772515 245030020 257281521 343042028 367545030 428802535 514563042 735090060 857605070 1029126084 1286407605 1715210140 2572815210 5145630420