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401050080 = 253252312109
BaseRepresentation
bin10111111001111…
…000100111100000
31000221122110021200
4113321320213200
51310132100310
6103443521200
712636604134
oct2771704740
91027573250
10401050080
11196422952
12b2389200
136511b552
143b3993c4
152531e9c0
hex17e789e0

401050080 has 144 divisors (see below), whose sum is σ = 1428204960. Its totient is φ = 102288384.

The previous prime is 401050079. The next prime is 401050123. The reversal of 401050080 is 80050104.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27066 + ... + 39174.

It is an arithmetic number, because the mean of its divisors is an integer number (9918090).

Almost surely, 2401050080 is an apocalyptic number.

401050080 is a gapful number since it is divisible by the number (40) 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 401050080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714102480).

401050080 is an abundant number, since it is smaller than the sum of its proper divisors (1027154880).

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

401050080 is a wasteful number, since it uses less digits than its factorization.

401050080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12153 (or 12142 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 401050080 is about 20026.2347933904. The cubic root of 401050080 is about 737.4504909789.

The spelling of 401050080 in words is "four hundred one million, fifty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 30 32 36 40 45 46 48 60 69 72 80 90 92 96 115 120 138 144 160 180 184 207 230 240 276 288 345 360 368 414 460 480 552 690 720 736 828 920 1035 1104 1380 1440 1656 1840 2070 2208 2760 3312 3680 4140 5520 6624 8280 11040 12109 16560 24218 33120 36327 48436 60545 72654 96872 108981 121090 145308 181635 193744 217962 242180 278507 290616 363270 387488 435924 484360 544905 557014 581232 726540 835521 871848 968720 1089810 1114028 1162464 1392535 1453080 1671042 1743696 1937440 2179620 2228056 2506563 2785070 2906160 3342084 3487392 4177605 4359240 4456112 5013126 5570140 5812320 6684168 8355210 8718480 8912224 10026252 11140280 12532815 13368336 16710420 17436960 20052504 22280560 25065630 26736672 33420840 40105008 44561120 50131260 66841680 80210016 100262520 133683360 200525040 401050080