Search a number
-
+
30023000040 = 23351122744697
BaseRepresentation
bin11011111101100000…
…101001111111101000
32212111100120102111110
4123331200221333220
5442441342000130
621443053030320
72111666201235
oct337540517750
985440512443
1030023000040
1111807223330
12599a7853a0
132aa6088ba7
14164b51478c
15baab6dab0
hex6fd829fe8

30023000040 has 64 divisors (see below), whose sum is σ = 98257095360. Its totient is φ = 7278302720.

The previous prime is 30023000023. The next prime is 30023000089. The reversal of 30023000040 is 4000032003.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 11371029 + ... + 11373668.

It is an arithmetic number, because the mean of its divisors is an integer number (1535267115).

Almost surely, 230023000040 is an apocalyptic number.

30023000040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30023000040 is an abundant number, since it is smaller than the sum of its proper divisors (68234095320).

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

30023000040 is a wasteful number, since it uses less digits than its factorization.

30023000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22744722 (or 22744718 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30023000040 its reverse (4000032003), we get a palindrome (34023032043).

The spelling of 30023000040 in words is "thirty billion, twenty-three million, forty", and thus it is an aban number and an uban number.

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 22744697 45489394 68234091 90978788 113723485 136468182 181957576 227446970 250191667 272936364 341170455 454893940 500383334 545872728 682340910 750575001 909787880 1000766668 1250958335 1364681820 1501150002 2001533336 2501916670 2729363640 3002300004 3752875005 5003833340 6004600008 7505750010 10007666680 15011500020 30023000040