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145143296 = 291971439
BaseRepresentation
bin10001010011010…
…11011000000000
3101010010001011122
420221223120000
5244124041141
622222531412
73411461204
oct1051533000
9333101148
10145143296
1174a25341
1240736b68
13240bb40c
14153c2b04
15cb2064b
hex8a6b600

145143296 has 40 divisors (see below), whose sum is σ = 291677760. Its totient is φ = 72153088.

The previous prime is 145143293. The next prime is 145143301. The reversal of 145143296 is 692341541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145143293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100145 + ... + 101583.

It is an arithmetic number, because the mean of its divisors is an integer number (7291944).

Almost surely, 2145143296 is an apocalyptic number.

145143296 is a gapful number since it is divisible by the number (16) 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 145143296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145838880).

145143296 is an abundant number, since it is smaller than the sum of its proper divisors (146534464).

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

145143296 is an equidigital number, since it uses as much as digits as its factorization.

145143296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1638 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 145143296 is about 12047.5431520290. The cubic root of 145143296 is about 525.5317919098.

The spelling of 145143296 in words is "one hundred forty-five million, one hundred forty-three thousand, two hundred ninety-six".

Divisors: 1 2 4 8 16 32 64 128 197 256 394 512 788 1439 1576 2878 3152 5756 6304 11512 12608 23024 25216 46048 50432 92096 100864 184192 283483 368384 566966 736768 1133932 2267864 4535728 9071456 18142912 36285824 72571648 145143296