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1230153400 = 23527878681
BaseRepresentation
bin100100101010010…
…1010011010111000
310011201202021020001
41021110222122320
510004404402100
6322022242344
742325063030
oct11124523270
93151667201
101230153400
11581431503
122a3b863b4
13167b21228
14b953c8c0
1572ee4d6a
hex4952a6b8

1230153400 has 48 divisors (see below), whose sum is σ = 3268697040. Its totient is φ = 421766400.

The previous prime is 1230153383. The next prime is 1230153443. The reversal of 1230153400 is 43510321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437941 + ... + 440740.

It is an arithmetic number, because the mean of its divisors is an integer number (68097855).

Almost surely, 21230153400 is an apocalyptic number.

1230153400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230153400 is an abundant number, since it is smaller than the sum of its proper divisors (2038543640).

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

1230153400 is a wasteful number, since it uses less digits than its factorization.

1230153400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878704 (or 878695 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1230153400 is about 35073.5427352299. The cubic root of 1230153400 is about 1071.4858095982.

Adding to 1230153400 its reverse (43510321), we get a palindrome (1273663721).

The spelling of 1230153400 in words is "one billion, two hundred thirty million, one hundred fifty-three thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 878681 1757362 3514724 4393405 6150767 7029448 8786810 12301534 17573620 21967025 24603068 30753835 35147240 43934050 49206136 61507670 87868100 123015340 153769175 175736200 246030680 307538350 615076700 1230153400