Search a number
-
+
1030200420 = 2235109157523
BaseRepresentation
bin111101011001111…
…001110001100100
32122210111121022010
4331121321301210
54102212403140
6250120434220
734346362524
oct7531716144
92583447263
101030200420
11489580907
12249018970
13135582462
149ab6d684
1560699880
hex3d679c64

1030200420 has 48 divisors (see below), whose sum is σ = 2911043520. Its totient is φ = 272198016.

The previous prime is 1030200403. The next prime is 1030200427. The reversal of 1030200420 is 240020301.

It is a super-2 number, since 2×10302004202 = 2122625810736352800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1030200396 and 1030200405.

It is not an unprimeable number, because it can be changed into a prime (1030200427) 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, 72222 + ... + 85301.

It is an arithmetic number, because the mean of its divisors is an integer number (60646740).

Almost surely, 21030200420 is an apocalyptic number.

1030200420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030200420 is an abundant number, since it is smaller than the sum of its proper divisors (1880843100).

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

1030200420 is a wasteful number, since it uses less digits than its factorization.

1030200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157644 (or 157642 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1030200420 is about 32096.7353480070. The cubic root of 1030200420 is about 1009.9671328716.

Adding to 1030200420 its reverse (240020301), we get a palindrome (1270220721).

The spelling of 1030200420 in words is "one billion, thirty million, two hundred thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 109 218 327 436 545 654 1090 1308 1635 2180 3270 6540 157523 315046 472569 630092 787615 945138 1575230 1890276 2362845 3150460 4725690 9451380 17170007 34340014 51510021 68680028 85850035 103020042 171700070 206040084 257550105 343400140 515100210 1030200420