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87204920470 = 2533734774573
BaseRepresentation
bin101000100110111010…
…0010111110010010110
322100002110102221211021
41101031310113302112
52412043424423340
6104021132031354
76205006410433
oct1211564276226
9270073387737
1087204920470
1133a8a9a4508
1214a9890255a
1382b9a28875
1443139d8b8a
152405cb4e4a
hex144dd17c96

87204920470 has 32 divisors (see below), whose sum is σ = 157890459168. Its totient is φ = 34677769728.

The previous prime is 87204920437. The next prime is 87204920471. The reversal of 87204920470 is 7402940278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87204920471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132104 + ... + 1206676.

It is an arithmetic number, because the mean of its divisors is an integer number (4934076849).

Almost surely, 287204920470 is an apocalyptic number.

87204920470 is a deficient number, since it is larger than the sum of its proper divisors (70685538698).

87204920470 is a wasteful number, since it uses less digits than its factorization.

87204920470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75264.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 87204920470 in words is "eighty-seven billion, two hundred four million, nine hundred twenty thousand, four hundred seventy".

Divisors: 1 2 5 10 337 347 674 694 1685 1735 3370 3470 74573 116939 149146 233878 372865 584695 745730 1169390 25131101 25876831 50262202 51753662 125655505 129384155 251311010 258768310 8720492047 17440984094 43602460235 87204920470