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87000436023701 = 671298513970503
BaseRepresentation
bin10011110010000001011110…
…000101011010000110010101
3102102001011022222021022002012
4103302001132011122012111
542400403343110224301
6505011240515354005
724216400623406634
oct2362013605320625
9372034288238065
1087000436023701
11257a2750047552
129911325bb2905
13397114b902b25
14176abb4a8b51b
15a0d133564ebb
hex4f205e15a195

87000436023701 has 4 divisors (see below), whose sum is σ = 88298949994272. Its totient is φ = 85701922053132.

The previous prime is 87000436023679. The next prime is 87000436023707. The reversal of 87000436023701 is 10732063400078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87000436023701 - 242 = 82602389512597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87000436023707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649256985185 + ... + 649256985318.

It is an arithmetic number, because the mean of its divisors is an integer number (22074737498568).

Almost surely, 287000436023701 is an apocalyptic number.

It is an amenable number.

87000436023701 is a deficient number, since it is larger than the sum of its proper divisors (1298513970571).

87000436023701 is a wasteful number, since it uses less digits than its factorization.

87000436023701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298513970570.

The product of its (nonzero) digits is 169344, while the sum is 41.

Adding to 87000436023701 its reverse (10732063400078), we get a palindrome (97732499423779).

The spelling of 87000436023701 in words is "eighty-seven trillion, four hundred thirty-six million, twenty-three thousand, seven hundred one".

Divisors: 1 67 1298513970503 87000436023701