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29380978852 = 22191632371729
BaseRepresentation
bin11011010111001111…
…100010100010100100
32210211121111100222221
4123113033202202210
5440133012310402
621255240202124
72060042125321
oct332717424244
983747440887
1029380978852
1111507884305
12583b769344
132a030697b4
1415ca14db48
15b6e600337
hex6d73e28a4

29380978852 has 24 divisors (see below), whose sum is σ = 54454920800. Its totient is φ = 13831917696.

The previous prime is 29380978789. The next prime is 29380978853. The reversal of 29380978852 is 25887908392.

It is not an unprimeable number, because it can be changed into a prime (29380978853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173477 + ... + 1198252.

Almost surely, 229380978852 is an apocalyptic number.

It is an amenable number.

29380978852 is a deficient number, since it is larger than the sum of its proper divisors (25073941948).

29380978852 is a wasteful number, since it uses less digits than its factorization.

29380978852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371915 (or 2371913 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 29380978852 in words is "twenty-nine billion, three hundred eighty million, nine hundred seventy-eight thousand, eight hundred fifty-two".

Divisors: 1 2 4 19 38 76 163 326 652 3097 6194 12388 2371729 4743458 9486916 45062851 90125702 180251404 386591827 773183654 1546367308 7345244713 14690489426 29380978852