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121828794 = 2341247257
BaseRepresentation
bin1110100001011…
…11010110111010
322111020112200120
413100233112322
5222142010134
620031114110
73006345663
oct720572672
9274215616
10121828794
116285085a
1234972936
131c317459
141227436a
15aa67649
hex742f5ba

121828794 has 48 divisors (see below), whose sum is σ = 256051584. Its totient is φ = 38625280.

The previous prime is 121828793. The next prime is 121828801. The reversal of 121828794 is 497828121.

It is not an unprimeable number, because it can be changed into a prime (121828793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 473914 + ... + 474170.

It is an arithmetic number, because the mean of its divisors is an integer number (5334408).

Almost surely, 2121828794 is an apocalyptic number.

121828794 is an abundant number, since it is smaller than the sum of its proper divisors (134222790).

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

121828794 is a wasteful number, since it uses less digits than its factorization.

121828794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 350 counting only the distinct ones).

The product of its digits is 64512, while the sum is 42.

The square root of 121828794 is about 11037.6081648154. The cubic root of 121828794 is about 495.7354560721.

The spelling of 121828794 in words is "one hundred twenty-one million, eight hundred twenty-eight thousand, seven hundred ninety-four".

Divisors: 1 2 3 6 41 47 82 94 123 141 246 257 282 514 771 1542 1681 1927 3362 3854 5043 5781 10086 10537 11562 12079 21074 24158 31611 36237 63222 72474 79007 158014 237021 432017 474042 495239 864034 990478 1296051 1485717 2592102 2971434 20304799 40609598 60914397 121828794