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164146400 = 25521123811
BaseRepresentation
bin10011100100010…
…10110011100000
3102102212111112022
421302022303200
5314010141100
624142121012
74032135635
oct1162126340
9372774468
10164146400
1184724690
1246b80168
1328012b62
1417b2c18c
15e625e85
hex9c8ace0

164146400 has 144 divisors (see below), whose sum is σ = 456720768. Its totient is φ = 57024000.

The previous prime is 164146387. The next prime is 164146421. The reversal of 164146400 is 4641461.

It is a self number, because there is not a number n which added to its sum of digits gives 164146400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201995 + ... + 202805.

It is an arithmetic number, because the mean of its divisors is an integer number (3171672).

Almost surely, 2164146400 is an apocalyptic number.

164146400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164146400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228360384).

164146400 is an abundant number, since it is smaller than the sum of its proper divisors (292574368).

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

164146400 is a wasteful number, since it uses less digits than its factorization.

164146400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 164146400 is about 12811.9631594850. The cubic root of 164146400 is about 547.5331950989.

Adding to 164146400 its reverse (4641461), we get a palindrome (168787861).

The spelling of 164146400 in words is "one hundred sixty-four million, one hundred forty-six thousand, four hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 23 25 32 40 44 46 50 55 80 88 92 100 110 115 160 176 184 200 220 230 253 275 352 368 400 440 460 506 550 575 736 800 811 880 920 1012 1100 1150 1265 1622 1760 1840 2024 2200 2300 2530 3244 3680 4048 4055 4400 4600 5060 6325 6488 8096 8110 8800 8921 9200 10120 12650 12976 16220 17842 18400 18653 20240 20275 25300 25952 32440 35684 37306 40480 40550 44605 50600 64880 71368 74612 81100 89210 93265 101200 129760 142736 149224 162200 178420 186530 202400 205183 223025 285472 298448 324400 356840 373060 410366 446050 466325 596896 648800 713680 746120 820732 892100 932650 1025915 1427360 1492240 1641464 1784200 1865300 2051830 2984480 3282928 3568400 3730600 4103660 5129575 6565856 7136800 7461200 8207320 10259150 14922400 16414640 20518300 32829280 41036600 82073200 164146400