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38429665568 = 2571131518239
BaseRepresentation
bin100011110010100101…
…100010100100100000
310200012020012021121222
4203302211202210200
51112200443244233
625353201034212
72530215524210
oct436245424440
9120166167558
1038429665568
11153305a9598
127546025968
1338159354a8
141c07bda240
15eedbe7898
hex8f2962920

38429665568 has 48 divisors (see below), whose sum is σ = 87231997440. Its totient is φ = 16324094976.

The previous prime is 38429665541. The next prime is 38429665591. The reversal of 38429665568 is 86556692483.

It is a self number, because there is not a number n which added to its sum of digits gives 38429665568.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733808 + ... + 784431.

It is an arithmetic number, because the mean of its divisors is an integer number (1817333280).

Almost surely, 238429665568 is an apocalyptic number.

It is an amenable number.

38429665568 is an abundant number, since it is smaller than the sum of its proper divisors (48802331872).

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

38429665568 is a wasteful number, since it uses less digits than its factorization.

38429665568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518369 (or 1518361 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 62.

The spelling of 38429665568 in words is "thirty-eight billion, four hundred twenty-nine million, six hundred sixty-five thousand, five hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 113 224 226 452 791 904 1582 1808 3164 3616 6328 12656 25312 1518239 3036478 6072956 10627673 12145912 21255346 24291824 42510692 48583648 85021384 170042768 171561007 340085536 343122014 686244028 1200927049 1372488056 2401854098 2744976112 4803708196 5489952224 9607416392 19214832784 38429665568