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30401511320 = 23523268912289
BaseRepresentation
bin11100010100000100…
…100011111110011000
32220110201210210100202
4130110010203332120
5444230241330240
621544413521332
72124243403535
oct342404437630
986421723322
1030401511320
1111990951474
125a854a3248
132b3661556b
1416858c3d8c
15bcdeda315
hex714123f98

30401511320 has 64 divisors (see below), whose sum is σ = 71409816000. Its totient is φ = 11626610688.

The previous prime is 30401511311. The next prime is 30401511323. The reversal of 30401511320 is 2311510403.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30401511292 and 30401511301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30401511323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2467736 + ... + 2480024.

It is an arithmetic number, because the mean of its divisors is an integer number (1115778375).

Almost surely, 230401511320 is an apocalyptic number.

It is an amenable number.

30401511320 is an abundant number, since it is smaller than the sum of its proper divisors (41008304680).

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

30401511320 is a wasteful number, since it uses less digits than its factorization.

30401511320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15012 (or 15008 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The spelling of 30401511320 in words is "thirty billion, four hundred one million, five hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 2689 5378 10756 12289 13445 21512 24578 26890 49156 53780 61445 61847 98312 107560 122890 123694 245780 247388 282647 309235 491560 494776 565294 618470 1130588 1236940 1413235 2261176 2473880 2826470 5652940 11305880 33045121 66090242 132180484 165225605 264360968 330451210 660902420 760037783 1321804840 1520075566 3040151132 3800188915 6080302264 7600377830 15200755660 30401511320