Search a number
-
+
69842517420 = 22351389541689
BaseRepresentation
bin100000100001011110…
…0000011110110101100
320200021110000111101110
41001002330003312230
52121014141024140
652030223312020
75021522413524
oct1010274036654
9220243014343
1069842517420
112769030a085
121165214b610
1367809289b0
143547b40684
151c3b8a4380
hex1042f03dac

69842517420 has 48 divisors (see below), whose sum is σ = 210602054880. Its totient is φ = 17192004096.

The previous prime is 69842517397. The next prime is 69842517467. The reversal of 69842517420 is 2471524896.

It is a self number, because there is not a number n which added to its sum of digits gives 69842517420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44770065 + ... + 44771624.

It is an arithmetic number, because the mean of its divisors is an integer number (4387542810).

Almost surely, 269842517420 is an apocalyptic number.

69842517420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69842517420 is an abundant number, since it is smaller than the sum of its proper divisors (140759537460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69842517420 is a wasteful number, since it uses less digits than its factorization.

69842517420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89541714 (or 89541712 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 69842517420 in words is "sixty-nine billion, eight hundred forty-two million, five hundred seventeen thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 89541689 179083378 268625067 358166756 447708445 537250134 895416890 1074500268 1164041957 1343125335 1790833780 2328083914 2686250670 3492125871 4656167828 5372501340 5820209785 6984251742 11640419570 13968503484 17460629355 23280839140 34921258710 69842517420