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121672984 = 2371214213
BaseRepresentation
bin1110100000010…
…01010100011000
322110221121221211
413100021110120
5222122013414
620023512504
73005126506
oct720112430
9273847854
10121672984
1162754794
12348b8734
131c291564
1412233676
15aa363c4
hex7409518

121672984 has 16 divisors (see below), whose sum is σ = 231351120. Its totient is φ = 59979360.

The previous prime is 121672963. The next prime is 121672997. The reversal of 121672984 is 489276121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106539 + ... + 107674.

It is an arithmetic number, because the mean of its divisors is an integer number (14459445).

Almost surely, 2121672984 is an apocalyptic number.

It is an amenable number.

121672984 is a deficient number, since it is larger than the sum of its proper divisors (109678136).

121672984 is a wasteful number, since it uses less digits than its factorization.

121672984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214290 (or 214286 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 121672984 is about 11030.5477651837. The cubic root of 121672984 is about 495.5240296088.

It can be divided in two parts, 12167 and 2984, that added together give a palindrome (15151).

The spelling of 121672984 in words is "one hundred twenty-one million, six hundred seventy-two thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 71 142 284 568 214213 428426 856852 1713704 15209123 30418246 60836492 121672984