Search a number
-
+
331030422 = 23318473319
BaseRepresentation
bin10011101110110…
…001111110010110
3212001220002101000
4103232301332112
51134220433142
652503044130
711126466162
oct2356617626
9761802330
10331030422
1115a949068
1292a40646
1353773ab8
1431d6dca2
151e0dd14c
hex13bb1f96

331030422 has 32 divisors (see below), whose sum is σ = 736243200. Its totient is φ = 110250504.

The previous prime is 331030397. The next prime is 331030423. The reversal of 331030422 is 224030133.

It is a super-3 number, since 3×3310304223 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 331030395 and 331030404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331030423) 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, 98079 + ... + 101397.

It is an arithmetic number, because the mean of its divisors is an integer number (23007600).

Almost surely, 2331030422 is an apocalyptic number.

331030422 is an abundant number, since it is smaller than the sum of its proper divisors (405212778).

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

331030422 is a wasteful number, since it uses less digits than its factorization.

331030422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177 (or 5171 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 331030422 is about 18194.2414516242. The cubic root of 331030422 is about 691.7608334622.

Adding to 331030422 its reverse (224030133), we get a palindrome (555060555).

The spelling of 331030422 in words is "three hundred thirty-one million, thirty thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 1847 3319 3694 5541 6638 9957 11082 16623 19914 29871 33246 49869 59742 89613 99738 179226 6130193 12260386 18390579 36781158 55171737 110343474 165515211 331030422