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145005340454 = 213213731110069
BaseRepresentation
bin1000011100001011111…
…1011110011100100110
3111212021200010112000222
42013002333132130212
54333432331343304
6150340423404342
713322240025422
oct2070277363446
9455250115028
10145005340454
1156550809547
1224129bb36b2
131089b870600
1470382bdb82
153b8a3804be
hex21c2fde726

145005340454 has 48 divisors (see below), whose sum is σ = 238032082080. Its totient is φ = 66216833280.

The previous prime is 145005340451. The next prime is 145005340549. The reversal of 145005340454 is 454043500541.

145005340454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1450053404542 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145005340451) 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, 14396132 + ... + 14406200.

It is an arithmetic number, because the mean of its divisors is an integer number (4959001710).

Almost surely, 2145005340454 is an apocalyptic number.

145005340454 is a deficient number, since it is larger than the sum of its proper divisors (93026741626).

145005340454 is a wasteful number, since it uses less digits than its factorization.

145005340454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10545 (or 10532 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 145005340454 its reverse (454043500541), we get a palindrome (599048840995).

The spelling of 145005340454 in words is "one hundred forty-five billion, five million, three hundred forty thousand, four hundred fifty-four".

Divisors: 1 2 13 26 137 169 274 311 338 622 1781 3562 4043 8086 10069 20138 23153 42607 46306 52559 85214 105118 130897 261794 553891 1107782 1379453 1701661 2758906 3131459 3403322 6262918 7200583 14401166 17932889 35865778 40708967 81417934 233127557 429009883 466255114 529216571 858019766 1058433142 5577128479 11154256958 72502670227 145005340454