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69136961394 = 23176539711069
BaseRepresentation
bin100000001100011100…
…0100100111101110010
320121110021101112110210
41000120320210331302
52113043030231034
651432221004550
74665164322054
oct1003070447562
9217407345423
1069136961394
1127359015426
12114959b3756
13669a6c2717
1434bc15b8d4
151be99858e9
hex1018e24f72

69136961394 has 64 divisors (see below), whose sum is σ = 146920210560. Its totient is φ = 21614269440.

The previous prime is 69136961393. The next prime is 69136961401. The reversal of 69136961394 is 49316963196.

It is not an unprimeable number, because it can be changed into a prime (69136961393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64673892 + ... + 64674960.

It is an arithmetic number, because the mean of its divisors is an integer number (2295628290).

Almost surely, 269136961394 is an apocalyptic number.

69136961394 is an abundant number, since it is smaller than the sum of its proper divisors (77783249166).

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

69136961394 is a wasteful number, since it uses less digits than its factorization.

69136961394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715.

The product of its digits is 5668704, while the sum is 57.

The spelling of 69136961394 in words is "sixty-nine billion, one hundred thirty-six million, nine hundred sixty-one thousand, three hundred ninety-four".

Divisors: 1 2 3 6 17 34 51 102 653 971 1069 1306 1942 1959 2138 2913 3207 3918 5826 6414 11101 16507 18173 22202 33014 33303 36346 49521 54519 66606 99042 109038 634063 698057 1037999 1268126 1396114 1902189 2075998 2094171 3113997 3804378 4188342 6227994 10779071 11866969 17645983 21558142 23733938 32337213 35291966 35600907 52937949 64674426 71201814 105875898 677813347 1355626694 2033440041 4066880082 11522826899 23045653798 34568480697 69136961394