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145204000 = 2553311171
BaseRepresentation
bin10001010011110…
…10001100100000
3101010020010102221
420221322030200
5244133012000
622224120424
73412133164
oct1051721440
9333203387
10145204000
1174a66a07
1240766114
132410cc36
14153daca4
15cb3361a
hex8a7a320

145204000 has 96 divisors (see below), whose sum is σ = 368589312. Its totient is φ = 56160000.

The previous prime is 145203977. The next prime is 145204019. The reversal of 145204000 is 402541.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 123415 + ... + 124585.

It is an arithmetic number, because the mean of its divisors is an integer number (3839472).

Almost surely, 2145204000 is an apocalyptic number.

145204000 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 145204000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184294656).

145204000 is an abundant number, since it is smaller than the sum of its proper divisors (223385312).

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

145204000 is a wasteful number, since it uses less digits than its factorization.

145204000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1209 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 145204000 is about 12050.0622405032. The cubic root of 145204000 is about 525.6050469535.

Adding to 145204000 its reverse (402541), we get a palindrome (145606541).

The spelling of 145204000 in words is "one hundred forty-five million, two hundred four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 31 32 40 50 62 80 100 124 125 155 160 200 248 250 310 400 496 500 620 775 800 992 1000 1171 1240 1550 2000 2342 2480 3100 3875 4000 4684 4960 5855 6200 7750 9368 11710 12400 15500 18736 23420 24800 29275 31000 36301 37472 46840 58550 62000 72602 93680 117100 124000 145204 146375 181505 187360 234200 290408 292750 363010 468400 580816 585500 726020 907525 936800 1161632 1171000 1452040 1815050 2342000 2904080 3630100 4537625 4684000 5808160 7260200 9075250 14520400 18150500 29040800 36301000 72602000 145204000