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1144620412 = 221322011931
BaseRepresentation
bin100010000111001…
…1000010101111100
32221202210202000121
41010032120111330
54321010323122
6305325104324
740236053515
oct10416302574
92852722017
101144620412
11538121291
1227b3b80a4
131531a45b0
14ac035a0c
156a74bbc7
hex4439857c

1144620412 has 12 divisors (see below), whose sum is σ = 2157169336. Its totient is φ = 528286320.

The previous prime is 1144620377. The next prime is 1144620437. The reversal of 1144620412 is 2140264411.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11005914 + ... + 11006017.

Almost surely, 21144620412 is an apocalyptic number.

It is an amenable number.

1144620412 is a deficient number, since it is larger than the sum of its proper divisors (1012548924).

1144620412 is a wasteful number, since it uses less digits than its factorization.

1144620412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22011948 (or 22011946 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1144620412 is about 33832.2392401094. The cubic root of 1144620412 is about 1046.0533359269.

Adding to 1144620412 its reverse (2140264411), we get a palindrome (3284884823).

The spelling of 1144620412 in words is "one billion, one hundred forty-four million, six hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 22011931 44023862 88047724 286155103 572310206 1144620412