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153404442440 = 23529157184179
BaseRepresentation
bin1000111011011110011…
…1100000011101001000
3112122222000112002221022
42032313213200131020
510003133014124230
6154250101332012
714040335150264
oct2166747403510
9478860462838
10153404442440
115a070899147
1225892a07008
131160999c342
1475d39970a4
153ecc9131e5
hex23b79e0748

153404442440 has 64 divisors (see below), whose sum is σ = 357293592000. Its totient is φ = 59207438080.

The previous prime is 153404442343. The next prime is 153404442517. The reversal of 153404442440 is 44244404351.

153404442440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 153404442440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780271 + ... + 1864449.

It is an arithmetic number, because the mean of its divisors is an integer number (5582712375).

Almost surely, 2153404442440 is an apocalyptic number.

153404442440 is a gapful number since it is divisible by the number (10) 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 153404442440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178646796000).

153404442440 is an abundant number, since it is smaller than the sum of its proper divisors (203889149560).

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

153404442440 is a wasteful number, since it uses less digits than its factorization.

153404442440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85790 (or 85786 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 153404442440 its reverse (44244404351), we get a palindrome (197648846791).

The spelling of 153404442440 in words is "one hundred fifty-three billion, four hundred four million, four hundred forty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 1571 3142 6284 7855 12568 15710 31420 45559 62840 84179 91118 168358 182236 227795 336716 364472 420895 455590 673432 841790 911180 1683580 1822360 2441191 3367160 4882382 9764764 12205955 19529528 24411910 48823820 97647640 132245209 264490418 528980836 661226045 1057961672 1322452090 2644904180 3835111061 5289808360 7670222122 15340444244 19175555305 30680888488 38351110610 76702221220 153404442440