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30703964690 = 2571725801651
BaseRepresentation
bin11100100110000110…
…010101001000010010
32221020210221000101102
4130212012111020102
51000340203332230
622034420304402
72134605252020
oct344606251022
987223830342
1030703964690
1112026651133
125b4a842102
132b84191c59
1416b3b35710
15bea831045
hex726195212

30703964690 has 32 divisors (see below), whose sum is σ = 66877881984. Its totient is φ = 9907833600.

The previous prime is 30703964689. The next prime is 30703964729. The reversal of 30703964690 is 9646930703.

It is a super-2 number, since 2×307039646902 (a number of 22 digits) contains 22 as substring.

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, 12899636 + ... + 12902015.

It is an arithmetic number, because the mean of its divisors is an integer number (2089933812).

Almost surely, 230703964690 is an apocalyptic number.

30703964690 is an abundant number, since it is smaller than the sum of its proper divisors (36173917294).

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

30703964690 is a wasteful number, since it uses less digits than its factorization.

30703964690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25801682.

The product of its (nonzero) digits is 734832, while the sum is 47.

The spelling of 30703964690 in words is "thirty billion, seven hundred three million, nine hundred sixty-four thousand, six hundred ninety".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 25801651 51603302 129008255 180611557 258016510 361223114 438628067 877256134 903057785 1806115570 2193140335 3070396469 4386280670 6140792938 15351982345 30703964690