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145152400 = 24521971269
BaseRepresentation
bin10001010011011…
…01100110010000
3101010010111122211
420221231212100
5244124334100
622223041504
73411526561
oct1051554620
9333114584
10145152400
1174a31168
1240740294
13240c25c3
14153c6168
15cb231ba
hex8a6d990

145152400 has 120 divisors (see below), whose sum is σ = 373636800. Its totient is φ = 54028800.

The previous prime is 145152389. The next prime is 145152401. The reversal of 145152400 is 4251541.

It is not an unprimeable number, because it can be changed into a prime (145152401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 539466 + ... + 539734.

It is an arithmetic number, because the mean of its divisors is an integer number (3113640).

Almost surely, 2145152400 is an apocalyptic number.

145152400 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 145152400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186818400).

145152400 is an abundant number, since it is smaller than the sum of its proper divisors (228484400).

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

145152400 is a wasteful number, since it uses less digits than its factorization.

145152400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 145152400 is about 12047.9209824766. The cubic root of 145152400 is about 525.5427795373.

The spelling of 145152400 in words is "one hundred forty-five million, one hundred fifty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 71 76 80 95 100 142 152 190 200 269 284 304 355 380 400 475 538 568 710 760 950 1076 1136 1345 1349 1420 1520 1775 1900 2152 2690 2698 2840 3550 3800 4304 5111 5380 5396 5680 6725 6745 7100 7600 10222 10760 10792 13450 13490 14200 19099 20444 21520 21584 25555 26900 26980 28400 33725 38198 40888 51110 53800 53960 67450 76396 81776 95495 102220 107600 107920 127775 134900 152792 190990 204440 255550 269800 305584 362881 381980 408880 477475 511100 539600 725762 763960 954950 1022200 1451524 1527920 1814405 1909900 2044400 2903048 3628810 3819800 5806096 7257620 7639600 9072025 14515240 18144050 29030480 36288100 72576200 145152400