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162138960 = 24325239791
BaseRepresentation
bin10011010101000…
…00101101010000
3102022002111211200
421222200231100
5313001421320
624031111200
74006105224
oct1152405520
9368074750
10162138960
1183583445
1246372500
132778c219
1417768784
15e37b290
hex9aa0b50

162138960 has 120 divisors (see below), whose sum is σ = 568249344. Its totient is φ = 41352960.

The previous prime is 162138947. The next prime is 162138961. The reversal of 162138960 is 69831261.

162138960 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162138961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11665 + ... + 21455.

Almost surely, 2162138960 is an apocalyptic number.

162138960 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 162138960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284124672).

162138960 is an abundant number, since it is smaller than the sum of its proper divisors (406110384).

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

162138960 is a wasteful number, since it uses less digits than its factorization.

162138960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9833 (or 9824 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 162138960 is about 12733.3797555873. The cubic root of 162138960 is about 545.2920018704.

The spelling of 162138960 in words is "one hundred sixty-two million, one hundred thirty-eight thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 30 36 40 45 46 48 60 69 72 80 90 92 115 120 138 144 180 184 207 230 240 276 345 360 368 414 460 552 690 720 828 920 1035 1104 1380 1656 1840 2070 2760 3312 4140 5520 8280 9791 16560 19582 29373 39164 48955 58746 78328 88119 97910 117492 146865 156656 176238 195820 225193 234984 293730 352476 391640 440595 450386 469968 587460 675579 704952 783280 881190 900772 1125965 1174920 1351158 1409904 1762380 1801544 2026737 2251930 2349840 2702316 3377895 3524760 3603088 4053474 4503860 5404632 6755790 7049520 8106948 9007720 10133685 10809264 13511580 16213896 18015440 20267370 27023160 32427792 40534740 54046320 81069480 162138960