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2545235214240 = 25358236442981
BaseRepresentation
bin100101000010011011110…
…101110011111110100000
3100000022200211002112112210
4211002123311303332200
5313200120203323430
65225133115522120
7351613205233455
oct45023365637640
910008624075483
102545235214240
118a1478a19264
1235134a159340
131560262599b4
148b29368d82c
154631a0122b0
hex2509bd73fa0

2545235214240 has 96 divisors (see below), whose sum is σ = 8027233958016. Its totient is φ = 677904583680.

The previous prime is 2545235214217. The next prime is 2545235214241. The reversal of 2545235214240 is 424125325452.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (2545235214241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2826451 + ... + 3616530.

It is an arithmetic number, because the mean of its divisors is an integer number (83617020396).

Almost surely, 22545235214240 is an apocalyptic number.

2545235214240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545235214240 is an abundant number, since it is smaller than the sum of its proper divisors (5481998743776).

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

2545235214240 is a wasteful number, since it uses less digits than its factorization.

2545235214240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6443822 (or 6443814 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

The spelling of 2545235214240 in words is "two trillion, five hundred forty-five billion, two hundred thirty-five million, two hundred fourteen thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 823 1646 2469 3292 4115 4938 6584 8230 9876 12345 13168 16460 19752 24690 26336 32920 39504 49380 65840 79008 98760 131680 197520 395040 6442981 12885962 19328943 25771924 32214905 38657886 51543848 64429810 77315772 96644715 103087696 128859620 154631544 193289430 206175392 257719240 309263088 386578860 515438480 618526176 773157720 1030876960 1546315440 3092630880 5302573363 10605146726 15907720089 21210293452 26512866815 31815440178 42420586904 53025733630 63630880356 79538600445 84841173808 106051467260 127261760712 159077200890 169682347616 212102934520 254523521424 318154401780 424205869040 509047042848 636308803560 848411738080 1272617607120 2545235214240