Search a number
-
+
2303031220 = 225740141023
BaseRepresentation
bin1000100101000101…
…0111011110110100
312221111120002220121
42021101113132310
514204033444340
61020305541324
7111033304510
oct21121273664
95844502817
102303031220
11a82001496
12543344844
132a9196a89
1417bc1b140
15d72be94a
hex894577b4

2303031220 has 48 divisors (see below), whose sum is σ = 5541193728. Its totient is φ = 787622400.

The previous prime is 2303031217. The next prime is 2303031223. The reversal of 2303031220 is 221303032.

2303031220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2303031217) and next prime (2303031223).

It is a junction number, because it is equal to n+sod(n) for n = 2303031194 and 2303031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303031223) 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, 35629 + ... + 76651.

It is an arithmetic number, because the mean of its divisors is an integer number (115441536).

Almost surely, 22303031220 is an apocalyptic number.

2303031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2303031220 is an abundant number, since it is smaller than the sum of its proper divisors (3238162508).

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

2303031220 is a wasteful number, since it uses less digits than its factorization.

2303031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41440 (or 41438 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2303031220 is about 47989.9074806360. The cubic root of 2303031220 is about 1320.5857554877.

Adding to 2303031220 its reverse (221303032), we get a palindrome (2524334252).

The spelling of 2303031220 in words is "two billion, three hundred three million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 401 802 1604 2005 2807 4010 5614 8020 11228 14035 28070 41023 56140 82046 164092 205115 287161 410230 574322 820460 1148644 1435805 2871610 5743220 16450223 32900446 65800892 82251115 115151561 164502230 230303122 329004460 460606244 575757805 1151515610 2303031220