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164075681430 = 23351494078441
BaseRepresentation
bin1001100011001110101…
…1000011011010010110
3120200111201100012212000
42120303223003122112
510142011333301210
6203213023140130
714565643165233
oct2306353033226
9520451305760
10164075681430
1163647498a21
1227970744646
131261a768b3b
147d26d2878a
1544046b1ac0
hex2633ac3696

164075681430 has 64 divisors (see below), whose sum is σ = 440471736000. Its totient is φ = 43459856640.

The previous prime is 164075681411. The next prime is 164075681431. The reversal of 164075681430 is 34186570461.

164075681430 is a `hidden beast` number, since 1 + 6 + 40 + 7 + 568 + 1 + 43 + 0 = 666.

164075681430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164075681431) 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 31 ways as a sum of consecutive naturals, for example, 1998991 + ... + 2079450.

It is an arithmetic number, because the mean of its divisors is an integer number (6882370875).

Almost surely, 2164075681430 is an apocalyptic number.

164075681430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164075681430 is an abundant number, since it is smaller than the sum of its proper divisors (276396054570).

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

164075681430 is a wasteful number, since it uses less digits than its factorization.

164075681430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078606 (or 4078600 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 164075681430 in words is "one hundred sixty-four billion, seventy-five million, six hundred eighty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 149 270 298 447 745 894 1341 1490 2235 2682 4023 4470 6705 8046 13410 20115 40230 4078441 8156882 12235323 20392205 24470646 36705969 40784410 61176615 73411938 110117907 122353230 183529845 220235814 367059690 550589535 607687709 1101179070 1215375418 1823063127 3038438545 3646126254 5469189381 6076877090 9115315635 10938378762 16407568143 18230631270 27345946905 32815136286 54691893810 82037840715 164075681430