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380013408 = 25326197223
BaseRepresentation
bin10110101001101…
…000101101100000
3222111001200101200
4112221220231200
51234240412113
6101413001200
712263026545
oct2651505540
9874050350
10380013408
11185564775
12a7323200
1360964308
1438680bcc
1523566873
hex16a68b60

380013408 has 144 divisors (see below), whose sum is σ = 1114678656. Its totient is φ = 122757120.

The previous prime is 380013353. The next prime is 380013437. The reversal of 380013408 is 804310083.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1703985 + ... + 1704207.

It is an arithmetic number, because the mean of its divisors is an integer number (7740824).

Almost surely, 2380013408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380013408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557339328).

380013408 is an abundant number, since it is smaller than the sum of its proper divisors (734665248).

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

380013408 is a wasteful number, since it uses less digits than its factorization.

380013408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 380013408 is about 19493.9325945280. The cubic root of 380013408 is about 724.3241632125.

The spelling of 380013408 in words is "three hundred eighty million, thirteen thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 72 96 97 122 144 183 194 223 244 288 291 366 388 446 488 549 582 669 732 776 873 892 976 1098 1164 1338 1464 1552 1746 1784 1952 2007 2196 2328 2676 2928 3104 3492 3568 4014 4392 4656 5352 5856 5917 6984 7136 8028 8784 9312 10704 11834 13603 13968 16056 17568 17751 21408 21631 23668 27206 27936 32112 35502 40809 43262 47336 53253 54412 64224 64893 71004 81618 86524 94672 106506 108824 122427 129786 142008 163236 173048 189344 194679 213012 217648 244854 259572 284016 326472 346096 389358 426024 435296 489708 519144 568032 652944 692192 778716 852048 979416 1038288 1305888 1319491 1557432 1704096 1958832 2076576 2638982 3114864 3917664 3958473 5277964 6229728 7916946 10555928 11875419 15833892 21111856 23750838 31667784 42223712 47501676 63335568 95003352 126671136 190006704 380013408