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145544403400 = 23521166156547
BaseRepresentation
bin1000011110001100011…
…1110101100111001000
3111220200020110202101021
42013203013311213020
54341033331402100
6150510121402224
713341504005464
oct2074307654710
9456606422337
10145544403400
11567a8026510
122425a639374
1310956451876
147089b234a4
153bbc862a1a
hex21e31f59c8

145544403400 has 48 divisors (see below), whose sum is σ = 369153537840. Its totient is φ = 52925236800.

The previous prime is 145544403359. The next prime is 145544403439. The reversal of 145544403400 is 4304445541.

145544403400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1455444034002 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33076074 + ... + 33080473.

It is an arithmetic number, because the mean of its divisors is an integer number (7690698705).

Almost surely, 2145544403400 is an apocalyptic number.

145544403400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145544403400 is an abundant number, since it is smaller than the sum of its proper divisors (223609134440).

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

145544403400 is a wasteful number, since it uses less digits than its factorization.

145544403400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66156574 (or 66156565 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 145544403400 its reverse (4304445541), we get a palindrome (149848848941).

The spelling of 145544403400 in words is "one hundred forty-five billion, five hundred forty-four million, four hundred three thousand, four hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 66156547 132313094 264626188 330782735 529252376 661565470 727722017 1323130940 1455444034 1653913675 2646261880 2910888068 3307827350 3638610085 5821776136 6615654700 7277220170 13231309400 14554440340 18193050425 29108880680 36386100850 72772201700 145544403400