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85423523370 = 23541200334673
BaseRepresentation
bin100111110001110100…
…0111000011000101010
322011111022102121101220
41033203220320120222
52344421410221440
6103124254322510
76112605653043
oct1174350703052
9264438377356
1085423523370
11332563964a9
12146801b9436
138094950043
1441c51a58ca
15234e6d38d0
hex13e3a3862a

85423523370 has 64 divisors (see below), whose sum is σ = 210127768704. Its totient is φ = 22212270080.

The previous prime is 85423523351. The next prime is 85423523371. The reversal of 85423523370 is 7332532458.

It is not an unprimeable number, because it can be changed into a prime (85423523371) 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, 2446354 + ... + 2481026.

It is an arithmetic number, because the mean of its divisors is an integer number (3283246386).

Almost surely, 285423523370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85423523370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105063884352).

85423523370 is an abundant number, since it is smaller than the sum of its proper divisors (124704245334).

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

85423523370 is a wasteful number, since it uses less digits than its factorization.

85423523370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36727.

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 85423523370 in words is "eighty-five billion, four hundred twenty-three million, five hundred twenty-three thousand, three hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 41 82 123 205 246 410 615 1230 2003 4006 6009 10015 12018 20030 30045 34673 60090 69346 82123 104019 164246 173365 208038 246369 346730 410615 492738 520095 821230 1040190 1231845 1421593 2463690 2843186 4264779 7107965 8529558 14215930 21323895 42647790 69450019 138900038 208350057 347250095 416700114 694500190 1041750285 2083500570 2847450779 5694901558 8542352337 14237253895 17084704674 28474507790 42711761685 85423523370