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2311012452 = 2237376131213
BaseRepresentation
bin1000100110111111…
…0100000001100100
312222001120121002210
42021233310001210
514213104344302
61021153003420
7111161165430
oct21157640144
95861517083
102311012452
11a86562951
12545b53570
132aaa2c7b8
1417ccd79c0
15d7d4966c
hex89bf4064

2311012452 has 96 divisors (see below), whose sum is σ = 6344810752. Its totient is φ = 640866816.

The previous prime is 2311012447. The next prime is 2311012481. The reversal of 2311012452 is 2542101132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1904598 + ... + 1905810.

Almost surely, 22311012452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2311012452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3172405376).

2311012452 is an abundant number, since it is smaller than the sum of its proper divisors (4033798300).

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

2311012452 is a wasteful number, since it uses less digits than its factorization.

2311012452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2311012452 is about 48072.9908784548. The cubic root of 2311012452 is about 1322.1095080572.

Adding to 2311012452 its reverse (2542101132), we get a palindrome (4853113584).

The spelling of 2311012452 in words is "two billion, three hundred eleven million, twelve thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 111 148 222 259 444 518 613 777 1036 1213 1226 1554 1839 2426 2452 3108 3639 3678 4291 4852 7278 7356 8491 8582 12873 14556 16982 17164 22681 25473 25746 33964 44881 45362 50946 51492 68043 89762 90724 101892 134643 136086 158767 179524 269286 272172 314167 317534 476301 538572 628334 635068 743569 942501 952602 1256668 1487138 1885002 1905204 2230707 2974276 3770004 4461414 5204983 8922828 10409966 15614949 20819932 27512053 31229898 55024106 62459796 82536159 110048212 165072318 192584371 330144636 385168742 577753113 770337484 1155506226 2311012452