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145124852 = 22177130059
BaseRepresentation
bin10001010011001…
…10110111110100
3101010002002212112
420221212313310
5244122443402
622222310152
73411353345
oct1051466764
9333062775
10145124852
1174a124a4
1240728358
13240b2bc2
14153ba0cc
15cb19e52
hex8a66df4

145124852 has 24 divisors (see below), whose sum is σ = 272704320. Its totient is φ = 67329920.

The previous prime is 145124851. The next prime is 145124887. The reversal of 145124852 is 258421541.

It is a super-2 number, since 2×1451248522 = 42122445336043808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145124851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10202 + ... + 19857.

It is an arithmetic number, because the mean of its divisors is an integer number (11362680).

Almost surely, 2145124852 is an apocalyptic number.

It is an amenable number.

145124852 is a deficient number, since it is larger than the sum of its proper divisors (127579468).

145124852 is a wasteful number, since it uses less digits than its factorization.

145124852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30151 (or 30149 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The square root of 145124852 is about 12046.7776604368. Note that the first 3 decimals coincide. The cubic root of 145124852 is about 525.5095304178.

The spelling of 145124852 in words is "one hundred forty-five million, one hundred twenty-four thousand, eight hundred fifty-two".

Divisors: 1 2 4 17 34 68 71 142 284 1207 2414 4828 30059 60118 120236 511003 1022006 2044012 2134189 4268378 8536756 36281213 72562426 145124852