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90954045 = 325721319167
BaseRepresentation
bin1010110101111…
…01100100111101
320100010221111100
411122331210331
5141241012140
613005243313
72153045100
oct532754475
9210127440
1090954045
1147383136
1226563539
1315ac7280
14c118737
157eb9530
hex56bd93d

90954045 has 144 divisors (see below), whose sum is σ = 209139840. Its totient is φ = 36142848.

The previous prime is 90954037. The next prime is 90954067. The reversal of 90954045 is 54045909.

It is not a de Polignac number, because 90954045 - 23 = 90954037 is a prime.

It is a congruent number.

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 143 ways as a sum of consecutive naturals, for example, 544552 + ... + 544718.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 290954045 is an apocalyptic number.

90954045 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

90954045 is an abundant number, since it is smaller than the sum of its proper divisors (118185795).

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

90954045 is a wasteful number, since it uses less digits than its factorization.

90954045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 90954045 is about 9536.9830135111. The cubic root of 90954045 is about 449.7184164309.

The spelling of 90954045 in words is "ninety million, nine hundred fifty-four thousand, forty-five".

Divisors: 1 3 5 7 9 13 15 19 21 35 39 45 49 57 63 65 91 95 105 117 133 147 167 171 195 245 247 273 285 315 399 441 455 501 585 637 665 735 741 819 835 855 931 1169 1197 1235 1365 1503 1729 1911 1995 2171 2205 2223 2505 2793 3173 3185 3507 3705 4095 4655 5187 5733 5845 5985 6513 7515 8183 8379 8645 9519 9555 10521 10855 11115 12103 13965 15197 15561 15865 17535 19539 22211 24549 25935 28557 28665 32565 36309 40915 41249 41895 45591 47595 52605 60515 66633 73647 75985 77805 97695 106379 108927 111055 122745 123747 136773 142785 155477 181545 199899 206245 227955 288743 319137 333165 368235 371241 466431 531895 544635 618735 683865 777385 866229 957411 999495 1399293 1443715 1595685 1856205 2021201 2332155 2598687 4331145 4787055 6063603 6996465 10106005 12993435 18190809 30318015 90954045