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145247410 = 25711188633
BaseRepresentation
bin10001010100001…
…00110010110010
3101010022022222201
420222010302302
5244140404120
622225053414
73412403560
oct1052046262
9333268881
10145247410
1174a96590
124078726a
1324126919
141540ca30
15cb4140a
hex8a84cb2

145247410 has 32 divisors (see below), whose sum is σ = 325959552. Its totient is φ = 45271680.

The previous prime is 145247383. The next prime is 145247411. The reversal of 145247410 is 14742541.

It is a super-2 number, since 2×1452474102 = 42193620223416200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145247411) by changing a digit.

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, 93547 + ... + 95086.

It is an arithmetic number, because the mean of its divisors is an integer number (10186236).

Almost surely, 2145247410 is an apocalyptic number.

145247410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145247410 is an abundant number, since it is smaller than the sum of its proper divisors (180712142).

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

145247410 is a wasteful number, since it uses less digits than its factorization.

145247410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188658.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 145247410 is about 12051.8633414091. The cubic root of 145247410 is about 525.6574198030.

Adding to 145247410 its reverse (14742541), we get a palindrome (159989951).

The spelling of 145247410 in words is "one hundred forty-five million, two hundred forty-seven thousand, four hundred ten".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 188633 377266 943165 1320431 1886330 2074963 2640862 4149926 6602155 10374815 13204310 14524741 20749630 29049482 72623705 145247410