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1115701668 = 223371145501
BaseRepresentation
bin100001010000000…
…0100000110100100
32212202101111222000
41002200010012210
54241104423133
6302413205300
736435210354
oct10240040644
92782344860
101115701668
1152286a1a4
12271790830
1314a1ba803
14a8268b64
1567e38413
hex428041a4

1115701668 has 48 divisors (see below), whose sum is σ = 2933320320. Its totient is φ = 366660000.

The previous prime is 1115701591. The next prime is 1115701723. The reversal of 1115701668 is 8661075111.

1115701668 is a `hidden beast` number, since 1 + 11 + 570 + 16 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 65083 + ... + 80418.

It is an arithmetic number, because the mean of its divisors is an integer number (61110840).

Almost surely, 21115701668 is an apocalyptic number.

1115701668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1115701668 is an abundant number, since it is smaller than the sum of its proper divisors (1817618652).

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

1115701668 is a wasteful number, since it uses less digits than its factorization.

1115701668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145585 (or 145577 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1115701668 is about 33402.1207111165. The cubic root of 1115701668 is about 1037.1686015251.

Adding to 1115701668 its reverse (8661075111), we get a palindrome (9776776779).

The spelling of 1115701668 in words is "one billion, one hundred fifteen million, seven hundred one thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 71 108 142 213 284 426 639 852 1278 1917 2556 3834 7668 145501 291002 436503 582004 873006 1309509 1746012 2619018 3928527 5238036 7857054 10330571 15714108 20661142 30991713 41322284 61983426 92975139 123966852 185950278 278925417 371900556 557850834 1115701668