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30710144190 = 23511175474179
BaseRepresentation
bin11100100110011101…
…111001110010111110
32221021020112222001210
4130212131321302332
51000343244103230
622035200545250
72135011630035
oct344635716276
987236488053
1030710144190
111202a091960
125b50922226
132b8554686b
1416b48a371c
15beb151eb0
hex726779cbe

30710144190 has 64 divisors (see below), whose sum is σ = 85134447360. Its totient is φ = 7006947840.

The previous prime is 30710144183. The next prime is 30710144191. The reversal of 30710144190 is 9144101703.

It is a super-2 number, since 2×307101441902 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30710144191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2731480 + ... + 2742699.

It is an arithmetic number, because the mean of its divisors is an integer number (1330225740).

Almost surely, 230710144190 is an apocalyptic number.

30710144190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30710144190 is an abundant number, since it is smaller than the sum of its proper divisors (54424303170).

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

30710144190 is a wasteful number, since it uses less digits than its factorization.

30710144190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474217.

The product of its (nonzero) digits is 3024, while the sum is 30.

Adding to 30710144190 its reverse (9144101703), we get a palindrome (39854245893).

The spelling of 30710144190 in words is "thirty billion, seven hundred ten million, one hundred forty-four thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 17 22 30 33 34 51 55 66 85 102 110 165 170 187 255 330 374 510 561 935 1122 1870 2805 5610 5474179 10948358 16422537 27370895 32845074 54741790 60215969 82112685 93061043 120431938 164225370 180647907 186122086 279183129 301079845 361295814 465305215 558366258 602159690 903239535 930610430 1023671473 1395915645 1806479070 2047342946 2791831290 3071014419 5118357365 6142028838 10236714730 15355072095 30710144190