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145411212464 = 24716310697451
BaseRepresentation
bin1000011101101100101…
…1110000010010110000
3111220022221211221202122
42013123023300102300
54340300232244324
6150445002533412
713335265624640
oct2073313602260
9456287757678
10145411212464
1156739925161
1224221b07268
131093498986b
147076172520
153bb0d03a5e
hex21db2f04b0

145411212464 has 80 divisors (see below), whose sum is σ = 324303886080. Its totient is φ = 61870521600.

The previous prime is 145411212451. The next prime is 145411212487. The reversal of 145411212464 is 464212114541.

It is a super-3 number, since 3×1454112124643 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19511939 + ... + 19519389.

It is an arithmetic number, because the mean of its divisors is an integer number (4053798576).

Almost surely, 2145411212464 is an apocalyptic number.

145411212464 is a gapful number since it is divisible by the number (14) 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 145411212464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162151943040).

145411212464 is an abundant number, since it is smaller than the sum of its proper divisors (178892673616).

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

145411212464 is a wasteful number, since it uses less digits than its factorization.

145411212464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8698 (or 8692 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The spelling of 145411212464 in words is "one hundred forty-five billion, four hundred eleven million, two hundred twelve thousand, four hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 163 326 652 1069 1141 1304 2138 2282 2608 4276 4564 7451 7483 8552 9128 14902 14966 17104 18256 29804 29932 52157 59608 59864 104314 119216 119728 174247 208628 348494 417256 696988 834512 1214513 1219729 1393976 2429026 2439458 2787952 4858052 4878916 7965119 8501591 9716104 9757832 15930238 17003182 19432208 19515664 31860476 34006364 55755833 63720952 68012728 111511666 127441904 136025456 223023332 446046664 892093328 1298314397 2596628794 5193257588 9088200779 10386515176 18176401558 20773030352 36352803116 72705606232 145411212464