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145776480 = 25352691129
BaseRepresentation
bin10001011000001…
…01111101100000
3101011022012201220
420230011331200
5244304321410
622244255040
73420036213
oct1054057540
9334265656
10145776480
1175318033
12409a1480
1324280695
141550977a
15cbe8070
hex8b05f60

145776480 has 96 divisors (see below), whose sum is σ = 461311200. Its totient is φ = 38694912.

The previous prime is 145776473. The next prime is 145776481. The reversal of 145776480 is 84677541.

145776480 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 (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145776481) 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, 128556 + ... + 129684.

It is an arithmetic number, because the mean of its divisors is an integer number (4805325).

Almost surely, 2145776480 is an apocalyptic number.

145776480 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 145776480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230655600).

145776480 is an abundant number, since it is smaller than the sum of its proper divisors (315534720).

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

145776480 is a wasteful number, since it uses less digits than its factorization.

145776480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 145776480 is about 12073.7931073876. The cubic root of 145776480 is about 526.2948897526.

The spelling of 145776480 in words is "one hundred forty-five million, seven hundred seventy-six thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 269 480 538 807 1076 1129 1345 1614 2152 2258 2690 3228 3387 4035 4304 4516 5380 5645 6456 6774 8070 8608 9032 10760 11290 12912 13548 16140 16935 18064 21520 22580 25824 27096 32280 33870 36128 43040 45160 54192 64560 67740 90320 108384 129120 135480 180640 270960 303701 541920 607402 911103 1214804 1518505 1822206 2429608 3037010 3644412 4555515 4859216 6074020 7288824 9111030 9718432 12148040 14577648 18222060 24296080 29155296 36444120 48592160 72888240 145776480