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69889321400 = 23522967179849
BaseRepresentation
bin100000100010110111…
…0100110100110111000
320200101201002101101012
41001011232212212320
52121113131241100
652035014413052
75022631300343
oct1010556464670
9220351071335
1069889321400
1127704777658
1211665961188
13678a535462
14355004545a
151c40a4c135
hex1045ba69b8

69889321400 has 96 divisors (see below), whose sum is σ = 170605710000. Its totient is φ = 26588728320.

The previous prime is 69889321393. The next prime is 69889321529. The reversal of 69889321400 is 412398896.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298676 + ... + 478524.

Almost surely, 269889321400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69889321400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85302855000).

69889321400 is an abundant number, since it is smaller than the sum of its proper divisors (100716388600).

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

69889321400 is a wasteful number, since it uses less digits than its factorization.

69889321400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179961 (or 179952 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 69889321400 in words is "sixty-nine billion, eight hundred eighty-nine million, three hundred twenty-one thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 29 40 50 58 67 100 116 134 145 200 232 268 290 335 536 580 670 725 1160 1340 1450 1675 1943 2680 2900 3350 3886 5800 6700 7772 9715 13400 15544 19430 38860 48575 77720 97150 179849 194300 359698 388600 719396 899245 1438792 1798490 3596980 4496225 5215621 7193960 8992450 10431242 12049883 17984900 20862484 24099766 26078105 35969800 41724968 48199532 52156210 60249415 96399064 104312420 120498830 130390525 208624840 240997660 260781050 301247075 349446607 481995320 521562100 602494150 698893214 1043124200 1204988300 1397786428 1747233035 2409976600 2795572856 3494466070 6988932140 8736165175 13977864280 17472330350 34944660700 69889321400