Search a number
-
+
1241430420 = 223520690507
BaseRepresentation
bin100100111111110…
…1011100110010100
310012111222012101110
41021333223212110
510020301233140
6323104055020
742522661446
oct11177534624
93174865343
101241430420
1158783405a
122a7904470
1316a26c119
14bac36496
1573ec1380
hex49feb994

1241430420 has 24 divisors (see below), whose sum is σ = 3476005344. Its totient is φ = 331048096.

The previous prime is 1241430397. The next prime is 1241430439. The reversal of 1241430420 is 240341421.

It is a super-2 number, since 2×12414304202 = 3082298975402752800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10345194 + ... + 10345313.

It is an arithmetic number, because the mean of its divisors is an integer number (144833556).

Almost surely, 21241430420 is an apocalyptic number.

1241430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241430420 is an abundant number, since it is smaller than the sum of its proper divisors (2234574924).

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

1241430420 is a wasteful number, since it uses less digits than its factorization.

1241430420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20690519 (or 20690517 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1241430420 is about 35233.9384684710. The cubic root of 1241430420 is about 1074.7500179505.

Adding to 1241430420 its reverse (240341421), we get a palindrome (1481771841).

The spelling of 1241430420 in words is "one billion, two hundred forty-one million, four hundred thirty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 20690507 41381014 62071521 82762028 103452535 124143042 206905070 248286084 310357605 413810140 620715210 1241430420