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153421086 = 237131923643
BaseRepresentation
bin10010010010100…
…00010100011110
3101200200121011110
421021100110132
5303233433321
623120202450
73542025540
oct1111202436
9350617143
10153421086
1179669595
1243469426
1325a29110
1416539690
15d708176
hex925051e

153421086 has 128 divisors (see below), whose sum is σ = 415457280. Its totient is φ = 36609408.

The previous prime is 153421013. The next prime is 153421087. The reversal of 153421086 is 680124351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153421087) 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 63 ways as a sum of consecutive naturals, for example, 238281 + ... + 238923.

It is an arithmetic number, because the mean of its divisors is an integer number (3245760).

Almost surely, 2153421086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153421086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207728640).

153421086 is an abundant number, since it is smaller than the sum of its proper divisors (262036194).

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

153421086 is a wasteful number, since it uses less digits than its factorization.

153421086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 153421086 is about 12386.3265740897. The cubic root of 153421086 is about 535.3383436418.

The spelling of 153421086 in words is "one hundred fifty-three million, four hundred twenty-one thousand, eighty-six".

Divisors: 1 2 3 6 7 13 14 19 21 23 26 38 39 42 46 57 69 78 91 114 133 138 161 182 247 266 273 299 322 399 437 483 494 546 598 643 741 798 874 897 966 1286 1311 1482 1729 1794 1929 2093 2622 3059 3458 3858 4186 4501 5187 5681 6118 6279 8359 9002 9177 10374 11362 12217 12558 13503 14789 16718 17043 18354 24434 25077 27006 29578 34086 36651 39767 44367 50154 58513 73302 79534 85519 88734 103523 117026 119301 158821 171038 175539 192257 207046 238602 256557 280991 310569 317642 351078 384514 476463 513114 561982 576771 621138 842973 952926 1111747 1153542 1345799 1685946 1966937 2223494 2691598 3335241 3652883 3933874 4037397 5900811 6670482 7305766 8074794 10958649 11801622 21917298 25570181 51140362 76710543 153421086