Search a number
-
+
87698349 = 3329313613
BaseRepresentation
bin1010011101000…
…10101110101101
320010000112112000
411032202232231
5134422321344
612411402513
72113265214
oct516425655
9203015460
1087698349
114555a082
1225453439
131522741b
14b90c07b
157a74a69
hex53a2bad

87698349 has 32 divisors (see below), whose sum is σ = 138777600. Its totient is φ = 54613440.

The previous prime is 87698339. The next prime is 87698353. The reversal of 87698349 is 94389678.

It is not a de Polignac number, because 87698349 - 29 = 87697837 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 87698295 and 87698304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87698339) 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, 22467 + ... + 26079.

It is an arithmetic number, because the mean of its divisors is an integer number (4336800).

Almost surely, 287698349 is an apocalyptic number.

It is an amenable number.

87698349 is a deficient number, since it is larger than the sum of its proper divisors (51079251).

87698349 is a wasteful number, since it uses less digits than its factorization.

87698349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682 (or 3676 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 87698349 is about 9364.7396653618. The cubic root of 87698349 is about 444.2872046105.

It can be divided in two parts, 876 and 98349, that added together give a square (99225 = 3152).

The spelling of 87698349 in words is "eighty-seven million, six hundred ninety-eight thousand, three hundred forty-nine".

Divisors: 1 3 9 27 29 31 87 93 261 279 783 837 899 2697 3613 8091 10839 24273 32517 97551 104777 112003 314331 336009 942993 1008027 2828979 3024081 3248087 9744261 29232783 87698349