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164996480 = 27511231019
BaseRepresentation
bin10011101010110…
…10010110000000
3102111110200121202
421311122112000
5314214341410
624212240332
74042306205
oct1165322600
9374420552
10164996480
1185155330
12473100a8
132824ca6c
1417cadcac
15e742ca5
hex9d5a580

164996480 has 128 divisors (see below), whose sum is σ = 449452800. Its totient is φ = 57333760.

The previous prime is 164996471. The next prime is 164996483. The reversal of 164996480 is 84699461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164996483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161411 + ... + 162429.

It is an arithmetic number, because the mean of its divisors is an integer number (3511350).

Almost surely, 2164996480 is an apocalyptic number.

164996480 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 164996480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224726400).

164996480 is an abundant number, since it is smaller than the sum of its proper divisors (284456320).

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

164996480 is a wasteful number, since it uses less digits than its factorization.

164996480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 164996480 is about 12845.0955621202. The cubic root of 164996480 is about 548.4767549086.

The spelling of 164996480 in words is "one hundred sixty-four million, nine hundred ninety-six thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 23 32 40 44 46 55 64 80 88 92 110 115 128 160 176 184 220 230 253 320 352 368 440 460 506 640 704 736 880 920 1012 1019 1265 1408 1472 1760 1840 2024 2038 2530 2944 3520 3680 4048 4076 5060 5095 7040 7360 8096 8152 10120 10190 11209 14720 16192 16304 20240 20380 22418 23437 32384 32608 40480 40760 44836 46874 56045 65216 80960 81520 89672 93748 112090 117185 130432 161920 163040 179344 187496 224180 234370 257807 326080 358688 374992 448360 468740 515614 652160 717376 749984 896720 937480 1031228 1289035 1434752 1499968 1793440 1874960 2062456 2578070 2999936 3586880 3749920 4124912 5156140 7173760 7499840 8249824 10312280 14999680 16499648 20624560 32999296 41249120 82498240 164996480