Search a number
-
+
69142429688 = 238642803711
BaseRepresentation
bin100000001100100110…
…1011011111111111000
320121110122200100120012
41000121031123333320
52113100430222223
651432534121052
74665261645443
oct1003115337770
9217418610505
1069142429688
112736110a882
12114977b0188
13669b8886b7
1434bcb8265a
151bea1b5c78
hex101935bff8

69142429688 has 8 divisors (see below), whose sum is σ = 129642055680. Its totient is φ = 34571214840.

The previous prime is 69142429687. The next prime is 69142429709. The reversal of 69142429688 is 88692424196.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69142429687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321401848 + ... + 4321401863.

It is an arithmetic number, because the mean of its divisors is an integer number (16205256960).

Almost surely, 269142429688 is an apocalyptic number.

It is an amenable number.

69142429688 is a deficient number, since it is larger than the sum of its proper divisors (60499625992).

69142429688 is a wasteful number, since it uses less digits than its factorization.

69142429688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8642803717 (or 8642803713 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 59.

The spelling of 69142429688 in words is "sixty-nine billion, one hundred forty-two million, four hundred twenty-nine thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 8642803711 17285607422 34571214844 69142429688