Search a number
-
+
1012220232 = 2331311731861
BaseRepresentation
bin111100010101010…
…100000101001000
32121112200010010020
4330111110011020
54033112021412
6244235220440
734040505252
oct7425240510
92545603106
101012220232
1147a410051
12242ba7720
131319284aa
149860ccd2
155dce718c
hex3c554148

1012220232 has 64 divisors (see below), whose sum is σ = 2565984960. Its totient is φ = 332716800.

The previous prime is 1012220227. The next prime is 1012220249. The reversal of 1012220232 is 2320222101.

It is a happy 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, 542982 + ... + 544842.

It is an arithmetic number, because the mean of its divisors is an integer number (40093515).

Almost surely, 21012220232 is an apocalyptic number.

1012220232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012220232 is an abundant number, since it is smaller than the sum of its proper divisors (1553764728).

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

1012220232 is a wasteful number, since it uses less digits than its factorization.

1012220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174 (or 2170 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1012220232 is about 31815.4087196754. The cubic root of 1012220232 is about 1004.0569297306.

Adding to 1012220232 its reverse (2320222101), we get a palindrome (3332442333).

The spelling of 1012220232 in words is "one billion, twelve million, two hundred twenty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 131 173 262 346 393 519 524 692 786 1038 1048 1384 1572 1861 2076 3144 3722 4152 5583 7444 11166 14888 22332 22663 44664 45326 67989 90652 135978 181304 243791 271956 321953 487582 543912 643906 731373 965859 975164 1287812 1462746 1931718 1950328 2575624 2925492 3863436 5850984 7726872 42175843 84351686 126527529 168703372 253055058 337406744 506110116 1012220232