Search a number
-
+
121476830 = 2530739569
BaseRepresentation
bin1110011110110…
…01011011011110
322110120122212212
413033121123132
5222044224310
620015400422
73003351566
oct717313336
9273518785
10121476830
1162630382
1234823112
131c2231a7
14121c1da6
15a9e8205
hex73d96de

121476830 has 16 divisors (see below), whose sum is σ = 219376080. Its totient is φ = 48431232.

The previous prime is 121476791. The next prime is 121476833. The reversal of 121476830 is 38674121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121476833) 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, 16715 + ... + 22854.

It is an arithmetic number, because the mean of its divisors is an integer number (13711005).

Almost surely, 2121476830 is an apocalyptic number.

121476830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121476830 is a deficient number, since it is larger than the sum of its proper divisors (97899250).

121476830 is a wasteful number, since it uses less digits than its factorization.

121476830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39883.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 121476830 is about 11021.6527798693. The cubic root of 121476830 is about 495.2576015243.

The spelling of 121476830 in words is "one hundred twenty-one million, four hundred seventy-six thousand, eight hundred thirty".

Divisors: 1 2 5 10 307 614 1535 3070 39569 79138 197845 395690 12147683 24295366 60738415 121476830